Exhibit 5.1

                              LOWENSTEIN SANDLER PC
                                Attorneys at Law





January 20, 2004



Arotech Corporation
632 Broadway, Suite 1200
New York, New York 10012

Dear Sirs:

Reference is made to our opinion dated December 4, 2003, and included as Exhibit
5.1 to  Amendment  No. 1 to the  Registration  Statement  on Form S-3  (File No.
333-110729) (the "Registration Statement") filed on December 4, 2003, by Arotech
Corporation,  a Delaware  corporation (the  "Company"),  with the Securities and
Exchange  Commission  (the  "Commission")  under the  Securities Act of 1933, as
amended (the "Securities  Act"). We are rendering this  supplemental  opinion in
connection  with a prospectus  supplement  to the  Registration  Statement  (the
"Prospectus Supplement") to be filed by the Company with the Commission pursuant
to Rule 424 promulgated under the Securities Act in connection with the offering
by the Company of 1,336,900 shares (the "Shares") of the Company's common stock,
par  value  $0.01  per  share  (the  "Common   Stock"),   pursuant  to  a  stock
purchase/sale  agreement,  dated as of January 7, 2004, among the Company,  FAAC
Incorporated ("FAAC") and the shareholders of FAAC (the "Purchase Agreement").

In  this   connection,   we  have  examined  and  relied   without   independent
investigation  as to matters of fact upon such  statements and  certificates  of
public  officials,  such statements and certificates of officers of the Company,
the Registration Statement,  the Prospectus Supplement,  the Purchase Agreement,
the certificate of incorporation  and bylaws of the Company,  as amended and now
in effect,  proceedings  of the board of directors  of the  Company,  such other
corporate records, certificates, documents and instruments and such questions of
law as we have  considered  necessary  or  appropriate  for the purposes of this
opinion.  In  rendering  this  opinion we have  assumed the  genuineness  of all
signatures  on all  documents  examined by us, the due  authority of the parties
signing such documents,  the  authenticity  of all documents  submitted to us as
originals and the  conformity to the originals of all documents  submitted to us
as copies.

Based on the foregoing,  and subject to the  limitations set forth below, we are
of the opinion that the Shares,  when issued by the Company and delivered by the
Company  against  payment  therefor in accordance with the terms of the Purchase
Agreement, will be validly issued, fully paid and nonassessable.

This opinion is limited to the  provisions of the Delaware  General  Corporation
Law.

We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to the references to this firm under the heading
"Legal Matters" in the prospectus included in the Registration Statement. In
giving such consent, we do not thereby admit that we are in the category of
persons whose consent is required under Section 7 of the Act.

Very truly yours,



/s/

LOWENSTEIN SANDLER PC



                                                    
65 Livingston Avenue   Roseland, New Jersey  Telephone 973.597.2500   www.lowenstein.com
                       07068-1791            Fax 973.597.2200