Exhibit 10.7
                                                                    ------------


THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED ( THE "SECURITIES ACT") OR ANY STATE SECURITIES LAWS.  THEY MAY NOT BE
SOLD OR OFFERED FOR SALE EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT
AS TO THE SECURITIES UNDER SAID ACT AND ANY APPLICABLE STATE SECURITIES LAWS OR
AN APPLICABLE EXEMPTION FROM SUCH REGISTRATION REQUIREMENTS.

                                  Right to Purchase Shares of Common Stock 
                                  of GRC International, Inc.

                         _____________________________
                         Common Stock Purchase Warrant

          GRC International, Inc., a Delaware corporation having an address at
1900 Gallows Road, Vienna, VA 22181, (the "Company"), hereby certifies that for
$10.00 and other good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, Cripple Creek Securities, LLC having an address
at 40 West 57th Street, 15th Floor, New York, NY 10019, ("Purchaser") or any
other Warrant Holder is entitled, on the terms and conditions set forth below,
to purchase from the Company at any time after the date hereof (subject to the
provisions of Section 2 hereof) and ending eighty-four (84) months after the
date hereof up to 125,000 of fully paid and nonassessable shares of Common
Stock, $0.10 par value, of the Company together with any associated Common Stock
Purchase Rights (the "Common Stock") at the Purchase Price (hereinafter
defined), as the same may be adjusted pursuant to Section 5 herein.

          1.  Definitions.
              ------------

              (a) the term "Warrant Holder" shall mean the Purchaser or any
              assignee of all or any portion of this Warrant at any given time
              who, at the time of assignment, acquired the right to purchase at
              least 1000 Warrant Shares, (such number being subject to
              adjustment after the date hereof pursuant to Section 5 herein).

              (b) the term "Warrant Shares" shall mean the shares of Common
              Stock or other securities issuable upon exercise of this Warrant.
              
              (c) the term "Purchase Price" shall mean $8.47, which represents
              140% of the average of the closing sale prices of the Common
              Stock on the Principal Market (as hereinafter defined) for the
              period from and including January 21, 1997 to and including
              January 29, 1997.
              
              (d) other terms used herein which are defined in the Structured
              Equity Line Flexible FinancingSM Agreement dated as of January
              21, 1997 (the "Agreement") or the Registration Rights Agreement,
              dated as of January 30, 1997 (the "Registration Rights
              Agreement") shall have the same meanings herein as therein.

 
          2.  Exercise of Warrant.
              --------------------

          This Warrant may be exercised by Warrant Holder, in whole or in part,
at any time and from time to time, on or after the date which is eighteen (18)
months following the date hereof, by surrender of this Warrant, together with
the Purchase Price (as defined in Section 1) for each share of Common Stock as
to which the Warrant is exercised, and the form of subscription attached hereto
as Exhibit A duly executed by Warrant Holder, to the Company it its principal
office; provided that in the event that prior to such date (i) the Company
declares a record date for a material dividend or distribution in respect of the
Common Stock (in cash or securities or other assets, other than Common Stock),
(ii) if at any time (A) there occurs any consolidation or merger of the Company
with or into any other corporation or other entity or person (whether or not the
Company is the surviving corporation) or there occurs any other corporate
reorganization or transaction or series of related transactions, and as a result
thereof the shareholders of the Company pursuant to such merger, consolidation,
reorganization or other transaction own in the aggregate less than 50% of the
voting power and common equity of the ultimate parent corporation or other
transaction (B) the Company transfers all or substantially all of the Company's
assets to another corporation or other entity or person or (iii) the Agreement
is terminated by the Investor pursuant to Section 2.6, of the Agreement, the
Warrant shall become exercisable thereafter in full at the Adjusted Purchase
Price.  The Adjusted Purchase Price shall equal the lesser of (x) $8.47 (as
adjusted from time to time pursuant to Section 5 hereof) and (y) 80.0% (as
adjusted from time to time pursuant to Sections 5 (c) and 5(f) hereof) of the
Transaction Value per share of Common Stock issuable upon exercise of the
Warrant.  The term "Transaction Value per share" means, in the case of a merger,
acquisition, sale of Common Stock, sale of assets or similar transaction, the
fair market value of the consideration to be received per share of Common Stock,
as evidenced by the average of the closing sale price for the Common Stock
during the ten (10) Trading Days following the announcement of such definitive
agreement and in the case of a material special dividend or distribution (which
material special dividend or distribution shall not include any grant of any
"poison pill" or any amendment or modification of the terms of any "poison pill"
that does not involve any increase in the consideration payable thereunder upon
redemption of the "poison pill"), the fair market value of the dividend or
distribution as determined in good faith by the Company's Board of Directors;
provided that if the dividend or distribution is in the form of an instrument
that trades "when issued" the fair market value thereof shall be determined by
reference to the average of the closing sale price for such instrument in the
when issued market or in the absence of a closing sale price, the average of the
closing bid and asked price) during the ten (10) Trading Days following such
record date.  In the event that the Warrant is not exercised in full, the number
of Warrant Shares shall be reduced by the number of such Warrant Shares for
which this Warrant is exercised, and the Company, at its expense, shall
forthwith issue and deliver to or upon the order of the Warrant Holder a new
Warrant of like tenor in the name of the Warrant Holder or as Warrant Holder
(upon payment by the Warrant Holder of any applicable transfer taxes) may
request, reflecting such adjusted Warrant Shares.

               (a) Subject to the terms of conditions of this Warrant, as soon
               as practicable after the exercise of this Warrant in full or in
               part, and in any event within three (3) Trading Days thereafter,
               the Company at its expense (including, without limitation, the
               payment by it of any applicable issue taxes) will cause to be
               issued in the name of and delivered to Warrant Holder, or as
               Warrant Holder (upon payment by Warrant Holder of any applicable
               transfer taxes) may lawfully direct, certificate or 

                                       2

 
               certificates for the number of fully paid and non-assessable
               shares of Common Stock to which Warrant Holder shall be entitled
               on such exercise, together with any other stock or other
               securities or property (including cash, where applicable) to
               which Warrant Holder is entitled upon such exercise.

               (b) This Warrant may not be exercised as to fractional shares of
               Common Stock.  In the event that the exercise of this Warrant, in
               full or in part, would result in the issuance of any fractional
               share of Common Stock, then in such event the Warrant Holder
               shall be entitled to cash equal to the Fair Market Value of such
               fractional share.  For purposes of this Warrant, Fair Market
               Value equals the closing sale price of the Common Stock on the
               New York Stock Exchange, the American Stock Exchange or the
               Nasdaq National Market whichever is the principal trading
               exchange or market for the Common Stock (the "Principal Market")
               on the date of determination or, if the Common Stock is not
               listed or admitted to trading on any national securities exchange
               or quoted in the Nasdaq National Market, the average of the
               closing bid and asked prices on the over-the-counter market as
               furnished by any New York Stock Exchange member firm that makes a
               market in the Common Stock reasonably selected from time to time
               by the Company for that purpose, or, if the Common Stock is not
               listed or admitted to trading on any national securities exchange
               or quoted on the Nasdaq National Market or traded over-the-
               counter and the average price cannot be determined as
               contemplated above, the Fair Market Value of the Common Stock
               shall be as reasonably determined in good faith by the Company's
               Board of Directors.

               (c) Notwithstanding any provision of this Section 2, as of any
               date prior to the date of exercise of this Warrant or any portion
               thereof, the aggregate number of shares of Common Stock into
               which this Warrant, all other warrants and all other securities
               convertible into or exchangeable for Common Stock held by the
               Warrant Holder and its affiliates shall be convertible or
               exchangeable, together with the shares of Common Stock then
               beneficially owned (as such term is defined in the Exchange Act)
               by such Warrant Holder and its affiliates, shall not exceed 4.9%
               of the total outstanding shares of Common Stock as of such date.
               This Warrant shall not be exercisable on any date to the extent
               that such exercise would limit the ability of the Investor to
               purchase shares of Common Stock as a result of a Mandatory
               Purchase Notice or an Additional Purchase Notice (as such terms
               are defined in the Agreement) pursuant to Section 2.1(c) of the
               Agreement.

          4.   Covenants of the Company.
               -------------------------

               (a) The Company shall use its reasonable best efforts to insure
          that a Registration Statement under the Securities Act covering the
          resale of other disposition thereof of the Warrant Shares by Warrant
          Holder is effective to the extent as provided in the Registration
          Rights Agreement or, to the extent applicable, pursuant to Section
          3.2(a) of the Agreement.

                                       3

 
               (b) The Company shall take all necessary actions and proceedings
          as may be required and permitted by applicable law, rule and
          regulation, including, without limitation the notification of the New
          York Stock Exchange, for the legal and valid issuance of this Warrant
          and the Warrant Shares to the Warrant Holder under this Warrant.

               (c) From the date hereof through the last date on which this
          Warrant is exercisable, the Company shall take all steps reasonably
          necessary and within its control to insure that the Common Stock
          remains listed on the Principal Market and shall not amend its
          Certificate of Incorporation or Bylaws so as to constitute a breach of
          the Company's obligations hereunder or so as to adversely affect any
          rights of the Warrant Holder under this Warrant.

               (d) The Company shall at all times reserve and keep available,
          solely for issuance and delivery as Warrant Shares hereunder, such
          shares of Common Stock as shall from time to time be issuable as
          Warrant Shares.

               (e) The Warrant Shares, when issued in accordance with the terms
          hereof, will be duly authorized and, when paid for or issued in
          accordance with the terms hereof, shall be validly issued, fully paid
          and non-assessable.  The Company has authorized and reserved for
          issuance to the Warrant Holder the requisite number of shares of
          Common Stock to be issued pursuant to this Warrant.

               (f) With a view to making available to the Warrant Holder the
          benefits of Rule 144 promulgated under the Securities Act and any
          other rule or regulation of the SEC that may at any time permit the
          Warrant Holder to sell securities of the Company to the public without
          registration, the Company agrees to use its reasonable best efforts
          to:

                   (i)     make and keep public information available, as those
               terms are understood an defined in Rule 144, at all times;

                   (ii)    file with the SEC in a timely manner all reports and
               other documents required of the Company under the Securities Act
               and Exchange Act; and

                   (iii)   furnish to any Warrant Holder forthwith upon request
               a written statement by the Company that it has complied with the
               reporting requirements of Rule 144 and of the Securities Act and
               the Exchange Act, a copy of the most recent annual or quarterly
               report of the Company, and such other reports and documents so
               filed by the Company as may be reasonably requested to permit any
               such Warrant Holder to take advantage of any rule or regulation
               of the SEC permitting the selling of any such securities without
               registration.

          5.   Adjustment of Exercise Price and Number of Shares.
               --------------------------------------------------

               The number of, and kind of, securities purchasable upon exercise
          of this Warrant and the Purchase Price shall be subject to adjustment
          from time to time as follows:

                                       4

 
               (a) Subdivisions, Combinations and Other Issuances.  If the
                   ----------------------------------------------
          Company shall at any time after the date hereof, but prior to the
          expiration of this Warrant subdivide its outstanding securities as to
          which purchase rights under this Warrant exist, by split-up, spin-off,
          or otherwise, or combine its outstanding securities as to which
          purchase rights under this Warrant exist, the number of Warrant Shares
          as to which this Warrant is exercisable as of the date of such
          subdivision, split-up, spin-off or combination shall forthwith be
          proportionately increased in the case of a subdivision, or
          proportionately decreased in the case of a combination.  Appropriate
          adjustments shall also be made to the Purchase Price payable per
          share, but the aggregate purchase price payable for the total number
          of Warrant Shares purchasable under this Warrant as of such date shall
          remain the same.

               (b) Stock Dividend.  If at any time after the date hereof the
                   --------------
          Company declares a dividend or other distribution on Common Stock
          payable in Common Stock or other securities or rights convertible into
          Common Stock ("Common Stock Equivalents") without payment of any
          consideration by holders of Common Stock for the additional shares of
          Common Stock or the Common Stock Equivalents (including the additional
          shares of Common Stock issuable upon exercise or conversion thereof),
          then the number of shares of Common Stock for which this Warrant may
          be exercised shall be increased as of the record date (or the date of
          such dividend distribution if not record date is set) for determining
          which holders of Common Stock shall be entitled to receive such
          dividends, in proportion to the increase in the number of outstanding
          shares (and shares of Common Stock issuable upon conversion of all
          such securities convertible into Common Stock) of Common Stock as a
          result of such dividend, and the Purchase Price per share shall be
          adjusted so that the aggregate amount payable for the purchase of all
          the Warrant Shares issuable hereunder immediately after the record
          date (or on the date of such distribution, if applicable), for such
          dividend shall equal the aggregate amount so payable immediately
          before such record date (or on the date of such distribution, if
          applicable).

               (c) Other Distributions.  If at any time after the date hereof
                   -------------------
          the Company distributes to holders of its Common Stock, other than as
          part of its dissolution, liquidation or the winding up of its affairs,
          any shares of its capital stock, any evidence of indebtedness or any
          of its assets (other than cash, Common Stock or securities convertible
          into or exchangeable for Common Stock), then the Company shall
          decrease the per share Purchase Price of this Warrant by an
          appropriate amount based upon the value distributed on each share of
          Common Stock as determined in good faith by the Company's Board of
          Directors.

               (d) Merger. etc.  If at any time after the date hereof there
                   ------
          shall be a merger or consolidation of the Company with or into or a
          transfer of all or substantially all of the assets of the Company to
          another entity, then the Warrant Holder shall be entitled to receive
          upon payment of the aggregate Purchase Price then in effect, the
          number of shares or other securities or property of the Company or of
          the successor corporation resulting from such merger or consolidation,
          which would have been received by Warrant Holder for 

                                       5

 
          the shares of stock subject to this Warrant had this Warrant been
          exercised just prior to such transfer, merger or consolidation
          becoming effective or to the applicable record date thereof, as the
          case may be.

               (e) Reclassification. Etc.  If at any time after the date hereof
                   ---------------------
          there shall be a reorganization or reclassification of the securities
          as to which purchase rights under this Warrant exist into the same or
          a different number of securities of any other class or classes, then
          the Warrant Holder shall thereafter be entitled to receive upon
          exercise of this Warrant, during the period specified herein and upon
          payment of the Purchase Price then in effect, the number of shares or
          other securities or property resulting from such reorganization or
          reclassification, which would have been received by the Warrant Holder
          for the shares of stock subject to this Warrant had this Warrant at
          such time been exercised.

               (f) Purchase Price Adjustment.  In the event that the Company
                   -------------------------
          issues or sells any Common Stock or securities which are convertible
          into or exchangeable for its Common Stock or any convertible
          securities, or any warrants or other rights to subscribe for or to
          purchase or any options for the purchase of its Common Stock or any
          such convertible securities (other than issuance of the Company's 5%
          Convertible Debentures due 2002 (the "Debentures") or of shares of
          Common Stock upon conversion thereof, shares or options issued or
          which may be issued pursuant to the Company's employee, officer,
          director, or consultant stock or option or similar equity-based
          compensations plans now or hereafter established or shares used upon
          exercise of options, warrants or rights outstanding on the date of the
          Agreement and listed in the SEC Documents) at an effective purchase
          price per share which is less than ninety-five (95%) of the Fair
          Market Value (including any applicable underwriting discounts and/or
          commissions) of the Common Stock on the Trading Day next preceding
          such issue or sale, then in each such case, the Purchase Price in
          effect immediately prior to such issue or sale shall be reduced
          effective concurrently with such issue or sale to an amount determined
          by multiplying the Purchase Price then in effect by a fraction, (x)
          the numerator of which shall be the sum of (1) the number of shares of
          Common Stock outstanding immediately prior to such issue or sale,
          including, without duplication, those deemed to have been issued under
          any provision of the Debentures and the Warrant plus (2) the number of
          shares of Common Stock which the aggregate consideration received by
          the Company for such additional shares would purchase at such Fair
          Market Value and (y) the denominator of which shall be the number of
          shares of Common Stock of the Company outstanding immediately after
          such issue or sale including, without duplication, those deemed to
          have been issued under any provision of the Debentures and Warrants.
          For purposes of the foregoing fraction, Common Stock outstanding shall
          include, without limitation, any Equity Offerings (as defined in the
          Agreement) then outstanding whether or not they are exercisable or
          convertible when such fraction is to be determined.

               The number of shares which may be purchased hereunder shall be
          increased proportionately to any reduction in Purchase Price pursuant
          to this paragraph 5(f), so that after such adjustments the aggregate
          Purchase Price payable hereunder for the increased number of shares of
          Common Stock shall 

                                       6

 
          be the same as the aggregate Purchase Price in effect immediately
          prior to such adjustment.

               Notwithstanding anything else contained in this Warrant to the
          contrary, there shall be no adjustment of the Purchase Price or the
          number of shares of Common Stock issuable pursuant to the exercise of
          this Warrant in the event that during the term of this Warrant, the
          Company issues shares of Common Stock, or securities convertible into
          Common Stock to the Purchaser.

               (g) Adjustments: Additional Shares, Securities or Assets.  In the
                   ----------------------------------------------------
          event that at any time, as a result of an adjustment made pursuant to
          this Section 5, the Warrant Holder shall, upon exercise of this
          Warrant, become entitled to receive shares and/or other securities
          (other than Common Stock) then, wherever appropriate, all references
          herein to shares of Common Stock shall be deemed to refer to and
          include such shares and/or other securities or assets; and thereafter
          the number of such shares and/or other securities or assets shall be
          subject to adjustment from time to time in a manner and upon terms as
          nearly equivalent as practicable to the provisions of this Section 5.

          6.   No Impairment.
               --------------

               The Company will not, by amendment of its Certificate of
          Incorporation or through any reorganization, transfer of assets,
          consolidation, merger, dissolution, issue or sale of securities or any
          other voluntary action, avoid or seek to avoid the observance or
          performance of any of the terms of this Warrant, but will at all times
          in good faith assist in the carrying out of all such terms and in the
          taking of all such action as may be necessary or appropriate in order
          to protect the rights of the Warrant Holder against impairment.
          Without limiting the generality of the foregoing, the Company (a) will
          not increase the par value of any Warrant Share above the amount
          payable therefor on such exercise, and (b) will take all such action
          as may be reasonably necessary or appropriate in order that the
          Company may validly and legally issue fully paid and nonassessable
          Warrant Shares on the exercise of this Warrant.  By acceptance hereof,
          the Holder of this Warrant acknowledges and agrees that the
          transactions specified in Section 2(i) and (ii) hereof shall not
          constitute an impairment of the rights of the Warrant Holder
          hereunder.

          7.   Notice of Adjustments.
               ----------------------

               Whenever the Purchase Price or number of Warrant Shares
          purchasable hereunder shall be adjusted pursuant to Section 5 hereof,
          the Company shall execute and deliver to the Warrant Holder a
          certificate setting forth, in reasonable detail, the event requiring
          the adjustment, the amount of the adjustment, the method by which such
          adjustment was calculated and the Purchase Price and number of shares
          purchasable hereunder after giving effect to such adjustment, and
          shall cause a copy of such certificate to be mailed (by first class
          mail, postage prepaid) to the Warrant Holder.

                                       7

 
          8.   Rights as Stockholder.
               ---------------------

               Prior to exercise of this Warrant, the Warrant Holder shall not
          be entitled to any rights as a stockholder of the Company with respect
          to the Warrant Shares, including (without limitation) the right to
          vote such shares, receive dividends or other distributions thereon or
          be notified of stockholder meetings.  However, in the event of any
          taking by the Company of a record of the holders of any class of
          securities for the purpose of determining the holders thereof who are
          entitled to receive any dividend (other than a cash dividend) or other
          distribution, any right to subscribe for, purchase or otherwise
          acquire any shares of stock of any class or any other securities or
          property, or to receive any other right, the Company shall mail to
          each Warrant Holder, at least 10 days prior to the date specified,
          therein, a notice specifying the date on which any such record is to
          be taken for the purpose of such dividend, distribution or right, and
          the amount and character of such dividend, distribution or right.

          9.   Replacement of Warrant.
               ----------------------

               Upon receipt of evidence reasonably satisfactory to the Company
          of the loss, theft, destruction or mutilation of the Warrant and, in
          the case of any such loss, theft or destruction of the Warrant, on
          delivery of an indemnity agreement or security reasonably satisfactory
          in form and amount to the Company or, in the case of any such
          mutilation, on surrender and cancellation of such Warrant, the Company
          at its expense will execute and deliver, in lieu thereof, a new
          Warrant of like tenor.

          10.  Specific Enforcement: Consent to Jurisdiction: Waiver of Jury 
               -------------------------------------------------------------
               Trial.
               -----

               (a) The Company and the Warrant Holder acknowledge and agree that
          irreparable damage would occur in the event that any of the provisions
          of this Warrant were not performed in accordance with their specific
          terms or were otherwise breached.  It is accordingly agreed that the
          parties shall be entitled to an injunction or injunctions to prevent
          or cure breaches of the provisions of this Warrant and to enforce
          specifically the terms and provisions hereof, this being in addition
          to any other remedy to which either of them may be entitled by law or
          equity.

               (b) Each of the Company and the Warrant Holder hereby (i) agree
          that all actions or proceedings arising directly or indirectly from or
          in connection with this Warrant shall be litigated only in the Supreme
          Court of the Sate of New York or the United States District Court for
          the Southern District of New York located in New York County, New York
          and (ii) to the extent permitted by applicable law, consent to the
          jurisdiction and venue of the foregoing courts and consent that any
          process or notice of motion or other application to either of said
          courts or a judge thereof may be served inside or outside the State of
          New York or the Southern District of New York by registered mail,
          return receipt requested, directed to the such party at its address,
          set forth in this Warrant (and service so made shall be deemed
          complete five (5) days after the same has been posted as aforesaid) or
          by personal service or in such other manner 

                                       8

 
          as may be permissible under the rules of said courts. The parties
          hereby waive any right to a jury trial in connection with any
          litigation pursuant to this Warrant.

          11.  Entire Agreement: Amendments.
               ----------------------------

               This Warrant, the Exhibits hereto and the provisions contained in
          the Agreement or the Registration Rights Agreement and incorporated
          into this Warrant and the Warrant Shares contain the entire
          understanding of the parties with respect to the matters covered
          hereby and thereby and except as specifically set forth herein and
          therein.  This Warrant and any term thereof may be changed, waived,
          discharged or terminated only by an instrument in writing signed by
          the party against which enforcement of such change, waiver, discharge
          or termination is sought.

          12.  Restricted Securities.
               ---------------------

               Sections 6.6, 7.1, 7.2 and 7.3 of the Agreement are incorporated
          herein by reference and hereby made a part hereof.

          13.  Notices.
               -------

               Any notice or other communication required or permitted to be
          given hereunder shall be in writing and shall be effective (a) upon
          hand delivery or delivery by telex (with correction answer back
          received), telecopy or facsimile at the address or number designated
          below (if delivered on a business day during normal business hours
          where such notice is to be received), or the first business day
          following such delivery (if delivered other than on a business day
          during normal business hours where such notice is to be received) or
          (b) on the second business day following the date of mailing by
          express courier service, fully prepaid, addressed to such address, or
          upon actual receipt of such mailing, whichever shall first occur.  The
          addresses for such communications shall be:

                         to the Company:
                                 Chairman, President & CEO
                                 GRC International, Inc.
                                 1900 Gallows Road
                                 Vienna, VA 22182

                         with copies to:
                                 Steve Parker, Esq.
                                 C.D. McCoy, Esq.
                                 Arnold & Porter
                                 555 12th Street, N.W.
                                 Washington, D.C. 20004

                                       9

 
                         to the Warrant Holder:
                                 Cripple Creek Securities, LLC
                                 40 West 57th Street
                                 15th Floor
                                 New York, NY 10019
                                 Attn: Robert Chender, Esq.
                                 Fax: (212) 698-0554

                         with copies to:
                                 The Palladin Group, L.P.
                                 40 West 57th Street
                                 15th Floor
                                 New York, NY 10019
                                 Attn: Andrew Kaplan
                                 Fax: (212) 698-0599

                         and
                                 Ramius Capital LLC
                                 40 West 57th Street
                                 15th Floor
                                 New York, NY 10019
                                 Attn: Jeffrey Solomon
                                 Fax: (212) 698-0554

          Either party hereto may from time to time change its address for
          notices under this Section 13 by giving at least 10 days prior written
          notice of such changed address to the other party hereto.

          14.  Miscellaneous.
               -------------

               This Warrant shall be construed and enforced in accordance with
               and governed by the laws of the State of New York.  The headings
               in this Warrant are for purposes of reference only, and shall not
               limit otherwise affect any of the terms hereof.  The invalidity
               or unenforceability of any provision hereof shall in no way
               affect the validity or enforceability of any other provisions.

                                       10

 
          15.  Expiration.
               ----------

               The right to exercise this Warrant shall expire eighty-four (84)
          months after the date hereof.

          Dated: January 30, 1997      GRC INTERNATIONAL, INC.

                                       By:
                                          ----------------------------------- 

                                       Title: Chairman, President & CEO

          [CORPORATE SEAL]

          Attest:

          By:
             -------------------------
          Its: SVP, Gen. Cnsl. & Sec'y.

                                       11

 
                                                                       EXHIBIT A
                                                                       ---------

                            FORM OF WARRANT EXERCISE

                   (To be signed only on exercise of Warrant)

TO:
   --------------------

The undersigned, the holder of the within Warrant, hereby irrevocably elects to
exercise this Warrant for, and to purchase thereunder, ____ shares of Common
Stock of GRC International, Inc., a Delaware corporation (the "Company"), and
herewith makes payment of $ _____ therefor, and requests that the certificates
for such shares be issued in the name of, and delivered to ________, whose
address is ______________________________________________________.
            
Dated:______________

                    (Signature must conform to name of holder as specified on
                    the face of the Warrant)

 _________________________
                    (Address)

                                       12

 
                                                                       EXHIBIT B
                                                                       ---------

                               FORM OF ASSIGNMENT
                               ------------------
                   (To be signed only on transfer of Warrant)

For value received, the undersigned hereby sells, assigns, and transfers unto 
_____________________ the right represented by the within Warrant to purchase 
________ shares of Common Stock of GRC International, Inc., a ______ 
corporation, to which the within Warrant relates, and appoints ________ 
Attorney to transfer such right on the books of GRC International, Inc., a 
Delaware corporation, with full power of substitution the premises.

Dated:                   
                         ----------------------------------  
                         (Signature must conform to name of
                         holder as specified on the face of
                         the Warrant)


                         ----------------------------------
                                       Address

Signed in the presence of:

- -----------------------------

                                       13