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Exhibit 10.4

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
    
    1. CONTRACT ID CODE
    
    PAGE
    
    OF
    
    PAGES1
    
    
    
    
    
    3


2. AMENDMENT/MODIFICATION NO.
    
    3. EFFECTIVE DATE
    
    4. REQUISITION/PURCHASE REG. NO.
    
    5. PROJ. NO. (if applicable)P00032
    
    Same as block 16C
    
    N00024-03-MR-21575
    
    0-02442-21575


6. ISSUED BY
    
    CODE N00024
    
    7. ADMINISTERED BY (if other than line 8)
    
        CODE S2401ANAVAL SEA SYSTEMS COMMAND
    
    
    
    DCMAO TWIN CITIES1333 ISAAC HULL AVE SE STOP 2040
    
    B.H. WHIPPLE FEDERAL BUILDING, SUITE 1150WASHINGTON NAVY YARD, DC 20376-2040
    
    ONE FEDERAL DRIVEBUYER: JON
            HALL, CODE 02442
    
    
    
        FORT SNELLING, MN 55111PHONE: (202) 781-2879


8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)
    
    (X)
    
    9A.
    
    AMENDMENT OF SOLICITATION NO.UNITED DEFENSE L.P.ARMAMENT SYSTEMS DIVISION
    
    
    
    9B.
    
    DATED (SEE ITEM 11)4800 EAST RIVER ROADMINNEAPOLIS, MN 55421-1492
    
    
    
    10A.
    
    MODIFICATION OF CONTRACT/ORDER NO:.X
    
    
    
        N00024-93-E-8521DUNS:10B.
    
    DATED (SEE ITEM 13)16-Nov-92


CAGE CODE       44114
    
    FACILITY CODE:




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o o    
 (if
    required)
   
 (X)
    
    A.
    
    THIS CHANGE ORDER IS ISSUED PURSUANT TO: (specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT CHANGE
NO. IN ITEM 10A.B.
    
    THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as
changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).X
    
    C.
    
        THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO
          PURSUANT TO AUTHORITY OF:
          MUTUAL AGREEMENT OF THE PARTIESD.
    
    OTHER (Specify type of modification and authority)
    14. DESCRIPTION OF AMENDMENT/MODIFICATION
(Organization by UCF section headings, including solicitation/contract subject matter where feasible.)Facility: MROP, Fridley, MN
 SEE ATTACHED PAGE Except as provided herein, all terms and conditions referenced in Items 9A and 10A,
as heretofore changed, remains unchanged and in full force and effect. 15A. NAME AND TITLE OF SIGNER (type or print)
    
    16A. NAME AND TITLE OF CONTRACTING OFFICER (type or print)PAT MILLER,SR. CONTRACTS REPRESENTATIVE
    
    J.B. HALL, CONTRACTING OFFICER
 15B. CONTRACT/OFFEROR
        
        15C. DATED SIGNED
        
        16B. UNITED STATES OF AMERICA
        
        16C. DATED SIGNED(SGD)
        
        6/5/03
        
        By                (SGD)
        
        6/6/03(Signature
            of person authorized to sign)
        
        
        
        (Signature of person authorized to
          sign)
 NSN 7540-01-152-8070
    
    STANDARD FORM 3D (REV. 10-83)PREVIOUS EDITION UNUSARLS
    
    Prescribed by GEA FAR (48 CFR) 53.24




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Page 2 of 3 The purposes of this modification are to 1) extend the contract through 30 June
2004, 2) reflect rescission of the Contracting Officers concurrence for
non-interference use of the facilities accountable under this contract for Navy
and Marine Corp contract efforts previously granted by Section C, PART 1, B.
USE OF PROPERTY, paragraph (i) of the contract, and 3) limit Non-Interference
use of the facilities accountable under this contract to either a) work on
contracts, including previously exercised options awarded or exercised before
23 May 2003 where non-interference use was previously authorized by this
contracts Contracting Officer or this contract OR b) work on other government
or non-government conracts, including priced contract options and subcontracts
where non-interference use is specifically concurred in by this contracts
Contracting Officer by 18 July 2003 and the contract action is awarded or
exercised on or before 30 September 2003. Accordingly,  1.
    
    Under Section F  DELIVERIES AND PERFORMANCE, revise the period of
performance as follows:The period of performance is from 16 November 1992 through 30 June 2004. 2. On page 2, Section C  DESCRIPTION/SPECIFICATIONS/WORK STATEMENT,
PART 1  CONTRACT DESCRIPTION, A.PROPERTY PROVIDED UNDER THIS
CONTRACT, DELETE subparagraph (i) in its entirety and SUBSTITUTE
therefore:  This facility  use contract is entered into to provide Government-owned
property to the contractor for performance of work on government contracts
and subcontracts awarded on or before 23 May 2003 and for other government
contracts, modifications and subcontracts, including priced options
awarded or exercised between 24 May 2003 and 30 September 2003, subject
to the concurrence of this contracts Contracting Officers as required by
Section C, PART 1  CONTRACT DESCRIPTION, B.USE OF PROPERTY,
subparagraph (i) (See item 3. below) of the contract.3.
    
    On page 2, Section C-DESCRIPTION/SPECIFICATIONS/WORK STATEMENT, PART
1  CONTRACT DESCRIPTION, B.USE OF PROPERTY, DELETE subparagraphs (i)
through (iv) in their entirety and SUBSTITUTE the following:"(i) In accordance with FAR 45.401, prior written concurrence of the
Contracting Officer cognizant of this facility use contract is required
(by 18 July 2003) for the use of the government production and research
property accountable under this facility use contract for performance of
work on all government [including pending Navy (including U.S. Marines)
contract actions] or non-government contracts, including priced options,
modifications or subcontracts, awarded or exercised after 23 May 2003.




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Page 3 of 3  (ii) The contractor shall submit by 20 June 2003, a noninterference use request
to this contracts Contracting Officer for each and every pending (not
awarded or exercised by 23 May 2003) contract action (including U.S. Navy and
Marine Corps contract actions) including priced options, contract modifications
and subcontracts for review and concurrence/ denial.(iii) In accordance with FAR 45.402, any Contracting Officer desiring to use
the government production and research property accountable under this contract
for work on any government or non-government contracts shall obtain written
concurrence (by 18 July 2003) of the Contracting Officer cognizant of this
facility use contract prior to authorizing its use on a rent due or rent free
basis. All requests shall be forwarded through the cognizant ACO. All requests
for use under another government prime contract shall include the following
information as a minimum: (1) request for proposal/quote or contract number,
(2) a description of the effort, (3) period of performance, including priced
options and (4) the government agency awarding the prime contract, with the
point of contact and telephone number. Requests for use under a subcontract
shall contain the above information along with the prime contractors name and the
proposal number.(iv) (RESERVED)  4.
    
    Except as modified herein, all other terms and conditions of this contract
remain unchanged and in full force and effect.