============================================================================ SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 0-13880 Date of Report (date of earliest event reported): August 4, 2004 ENGINEERED SUPPORT SYSTEMS, INC. (Exact name of registrant as specified in its charter) MISSOURI 43-1313242 (State or other jurisdiction of (I.R.S. Employer Identification No.) incorporation or organization) 201 EVANS LANE, ST. LOUIS, MISSOURI 63121 (Address of principal executive offices) (Zip Code) (314) 553-4000 (Registrant's telephone number, including area code) ============================================================================ ITEM 5. OTHER EVENTS On August 4, 2004, the Registrant issued the press release attached hereto as Exhibit 99.1. In addition, on August 5, 2004, the Registrant issued the press release attached hereto as Exhibit 99.2. ITEM 7. EXHIBITS (c) Exhibits. See Exhibit Index. -------- * * * SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Dated: August 5, 2004 ENGINEERED SUPPORT SYSTEMS, INC. By:/s/ Gary C. Gerhardt ------------------------------------- Name: Gary C. Gerhardt Title: Vice Chairman and Chief Financial Officer EXHIBIT INDEX Exhibit No. Description ----------- ----------- 99.1 Press Release, dated August 4, 2004, issued by Engineered Support Systems, Inc. 99.2 Press Release, dated August 5, 2004, issued by Engineered Support Systems, Inc.