EXHIBIT 5.1

                              LOWENSTEIN SANDLER PC
                                Attorneys at Law

July 15, 2004

Arotech Corporation
250 West 57th Street, Suite 310
New York, New York 10107

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 4,258,065 shares (the "Shares") of the Company's common stock,
par  value  $0.01 per share  (the  "Common  Stock"),  pursuant  to a  securities
purchase  agreement,  dated as of July 15,  2004,  among the Company and several
institutional investors (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 or a committee
thereof, 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  there-for 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,

LOWENSTEIN SANDLER PC