EXHIBIT 10.1

                       ASSIGNMENT AND ASSUMPTION AGREEMENT
                       -----------------------------------

KNOW ALL MEN BY THESE PRESENTS:

        THAT VALENTEC SYSTEMS,  INC., a Delaware corporation (the "SELLER"),  as
of June 6, 2005,  for and in  consideration  for the assumption by ACORN HOLDING
CORP. (the "BUYER") of all rights and obligations of the Seller pursuant to that
certain  Promissory  Note (the "NOTE") and related  documents,  instruments  and
agreements  therewith  all dated  April 28,  2005 by and  between the Seller and
MONTGOMERY  EQUITY  PARTNERS,  LTD.  ("MONTGOMERY"),   and  the  Standby  Equity
Distribution  Agreement  (the  "SEDA") and related  documents,  instruments  and
agreements  therewith all dated as of April 28, 2005, by and between  Seller and
CORNELL CAPITAL PARTNERS,  LP ("CORNELL"),  a Delaware limited partnership (both
Montgomery  and Cornell shall be referred to  individually  as an "INVESTOR" and
collectively as the  "INVESTORS"),  and all agreements  executed or delivered in
connection  therewith  and dated April 28,  2005  (collectively,  the  "ASSIGNED
AGREEMENTS"),  and  other  good and  valuable  consideration,  the  receipt  and
sufficiency of which are hereby acknowledged and confessed, has:

        GRANTED, SOLD, ASSIGNED, TRANSFERRED, CONVEYED AND DELIVERED and does by
these presents GRANT, SELL, ASSIGN, TRANSFER, CONVEY AND DELIVER unto the Buyer,
all right,  title,  interest,  and  obligations of Seller in and to the Assigned
Agreements.

        TO HAVE AND TO HOLD, the Assigned Agreements and all such other property
as  is  hereinabove   described  unto  Buyer  and  Buyer's   successors,   legal
representatives and assigns, forever.

        AND Seller does  represent,  warrant and covenant to and with Buyer that
it is the lawful owner of the Assigned  Agreements;  that, with the exception of
such security  interests and pledges of Seller's property under the terms of the
Assigned Agreements, they are free from all liens and encumbrances;  that it has
good right to sell the same; that it will defend the same from the claims of all
others; that it has not previously assigned,  conveyed or transferred any of the
Assigned  Agreements;  and, for purposes of clarification,  any agreement by the
Seller  in the  Assigned  Agreements  to issue  shares  of its,  or a  surviving
entity's,  capital  stock  (or  warrants  or  other  securities  exercisable  or
convertible into shares of he Seller's, or a surviving entity's,  capital stock,
to an Investor  shall,  in fact,  constitute  an  agreement  for the issuance of
shares of the Buyer's common stock).

        Within  five (5)  business  days after  Buyer's  request,  Seller  shall
execute and deliver to Buyer or any  designee of Buyer any and all such  further
documents as Buyer may reasonably require to effectuate the transfer, assignment
and conveyance  contemplated hereby,  including without limitation,  any and all
documents required by any governmental entity or any third party.

        By its execution hereof,  Buyer hereby accepts the transfer,  assignment
and  conveyance  of the Assigned  Agreements  and  expressly  assumes all of the
Seller's obligations as if the Buyer had been the original signatory to the Note



and the SEDA and all agreements  executed or delivered in connection  therewith.
Seller  shall  remain  liable to the  Investor  under the terms of the  Assigned
Agreements.

        All of the  covenants,  terms and  conditions  set forth herein shall be
binding  upon,  and inure to the  benefit  of,  the  parties  hereto,  and their
respective successors,  personal and legal representatives,  heirs, devisees and
assigns.

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IN WITNESS  WHEREOF,  the parties hereto have duly executed this  Assignment and
Assumption Agreement as of the date first above written.

                                                  SELLER:
                                                  VALENTEC SYSTEMS, INC.

                                                  By:    /s/ Robert Zummo
                                                        ------------------------
                                                  Name:  Robert Zummo
                                                  Title: CEO

                                                  BUYER:
                                                  ACORN HOLDING CORP.

                                                  By:   /s/ Edward N. Epstein
                                                        ------------------------
                                                  Name:  Edward N. Epstein
                                                  Title: Chief Executive Officer


ACKNOWLEDGED AND AGREED:
CORNELL CAPITAL PARTNERS, LP                      PLACEMENT AGENT:
                                                  NEWBRIDGE SECURITIES
                                                  CORPORATION
By:     Yorkville Advisors, LLC
Its:    General Partner                           By:    /s/ Guy S. Amico
                                                        ------------------------
                                                  Name:  Guy S. Amico
By:     /s/ Mark Angelo                           Title: President
        ----------------------------
Name:   Mark Angelo
Title:  Portfolio Manager


MONTGOMERY EQUITY PARTNERS, LTD.                  ESCROW AGENT


                                                  By:    /s/ David Gonzalez
                                                        ------------------------
                                                  Name:  David Gonzalez, Esq.
By:     /s/ Mark Angelo
        ----------------------------
Name:   Mark Angelo
Title:  Portfolio Manager

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