Engineered Support Systems to Webcast Conference Call on Second Quarter Financial Results on June 1, 2005

Engineered Support Systems to Webcast Conference Call on Second
Quarter Financial Results on June 1, 2005 


ST. LOUIS, May 20  /PRNewswire-FirstCall/ -- Engineered Support Systems, Inc.
(NASDAQ:EASI) will webcast its investor conference call on fiscal 2005 second
quarter financial results, which will be announced June 1 prior to the opening
of the market.  Conference call details:

   When:    10:00 AM Central Daylight Time, Wednesday, June 1, 2005

   Who:     Gerald A. Potthoff, Vice Chairman and Chief Executive Officer
            Gary C. Gerhardt, Vice Chairman and Chief Financial Officer
            Daniel A. Rodrigues, President and Chief Operating Officer

   Where:   Live webcast at http://www.engineeredsupport.com/ .  On-demand
            replay of the webcast will be available one hour after
            completion of the call through June 8, 2005.




Telephone recording:  For those who cannot participate in the live or on-
demand webcast, a telephone recording of the conference call will be available
on Instant Replay Plus one hour after its completion.  The telephone replay
number is 1-800-734-5421, and the passcode is EASI.  The recording will be
available 24 hours a day for one week.

Engineered Support Systems, Inc. provides advanced sustainment solutions
including the design, manufacture and supply of integrated military
electronics, support equipment and technical and logistics services for all
branches of America's armed forces and certain foreign militaries, homeland
security forces and selected government and intelligence agencies. The company
also produces specialized equipment and systems for commercial and industrial
applications.  For additional information, please visit the Company's website
at http://www.engineeredsupport.com/ .

Certain statements in this press release are forward looking in nature and,
accordingly, are subject to risks and uncertainties.  The actual results may
differ materially from those described or contemplated. 

DATASOURCE: Engineered Support Systems, Inc.



CONTACT:  Larry Cox, Communications Mgr of Engineered Support Systems,

Inc., [phone],  



Web site:  http://www.engineeredsupport.com/ 

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