Exhibit 5.1

                              LOWENSTEIN SANDLER PC
                                Attorneys at Law


December 4, 2003


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

Dear Sirs:


         In connection with the registration by Arotech Corporation, a Delaware
corporation (the "Company"), under the Securities Act of 1933, as amended (the
"Act"), of shares of the Company's common stock, par value $0.01 per share
("Common Stock"), and warrants to purchase Common Stock ("Warrants") in an
aggregate amount of up to $30,000,000, as contemplated by the Company's
Registration Statement on Form S-3, as amended from time to time (the
"Registration Statement"), we have examined such corporate records, certificates
and other documents and such questions of law as we have considered necessary or
appropriate for the purposes of this opinion.


         Based on such examination and on the assumptions set forth below, we
are of the opinion that (i) the Common Stock being registered pursuant to the
Registration Statement (including shares of Common Stock issuable upon the
exercise of Warrants being registered pursuant to the Registration Statement),
when issued and delivered in accordance with the applicable definitive
subscription, purchase, underwriting, warrant or other agreement approved by the
Company's board of directors (the "Board") and upon receipt by the Company of
such lawful consideration therefor having a value not less than the par value
thereof as the Board may determine (and, if applicable, in accordance with the
terms of the Warrant related thereto), will be validly issued, fully paid, and
non-assessable, and (ii) the Warrants being registered pursuant to the
Registration Statement, when issued and delivered in accordance with the
applicable definitive subscription, purchase, underwriting, warrant or other
agreement approved by the Board and upon receipt by the Company of such lawful
consideration therefor as the Board may determine, will be validly issued and
will be valid and binding obligations of the Company.

         In rendering the foregoing opinion, we have assumed that (i) the
Registration Statement, and any amendments thereto, will have become effective;
(ii) a Prospectus Supplement describing the Common Stock and/or Warrants offered
pursuant to the Registration Statement (the "Offered Securities") will have been
filed with the Securities and Exchange Commission (the "Commission"); (iii) the
definitive terms of any Offered Securities will have been established in
accordance with the authorizing resolutions of the Company's Board of Directors,
the Company's Restated Certificate of Incorporation, the Company's Bylaws, and
applicable law; (iv) any Common Stock (including shares of Common Stock issuable
upon the exercise of the Warrants being registered pursuant to the Registration
Statement) will have been duly authorized and reserved for issuance, in each
case within the limits of such Common Stock then remaining authorized but
unissued; (v) resolutions authorizing the Company to issue, offer and sell the
Offered Securities will have been validly adopted by the Company's Board of
Directors and will be in full force and effect at all times at which the Offered
Securities are offered or sold by the Company; (vi) resolutions authorizing any
issue that requires approval of shareholders pursuant to the corporate
governance requirements of the Nasdaq Stock Market will have been validly
adopted by the shareholders of the Company; (vii) any subscription agreement or
other agreement upon which approval of the Company's Board of Directors for
issuance of Common Stock is predicated will have been duly authorized, executed
and delivered by the prospective purchaser of such Common Stock; (viii) each
Warrant will have been duly authorized, executed and delivered by the Company;
and (ix) all Offered Securities will be issued in compliance with applicable
federal and state securities laws.

         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. 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

                                        LOWENSTEIN SANDLER PC