EXHIBIT 4.2 Number Shares HIENERGY TECHNOLOGIES,INC INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE PAR VALUE $0.001 CUSIP No. 42952V 20 0 SERIES A CONVERTIBLE PREFERRED STOCK THIS CERTIFIES THAT is the owner of FULLY PAID AND NONASSESSABLE SHARE OF THE SERIES A CONVERTIBLE PREFERRED STOCK PAR VALUE OF $0.001 EACH OF HIENERGY TECHNOLOGIES, INC. transferable on the books of the Corporation in person or by duly authorized attorney upon surrender of this Certificate properly endorsed. This Certificate is not valid unless countersigned by the Transfer Agent and registered by the Registrar. Witness the facsimile seal of the Corporation and the facsimile signatures of its duly authorized officers. Dated: /s/ Tom Poscoe PRESIDENT COUNTERSIGNED AND REGISTERED: /s/ B.C. Maglich CHAIRMAN BY SIGNATURE STOCK TRANSFER, INC. /s/ Michael Levy (Plano, Texas) Transfer Agent CORPORATE SECRETARY Authorized Signature SEAL The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations: TEN COM (TIC) - as tenants in common UNIF GIFT MIN (TRANS) ACT - _____Custodian_____ TEN ENT - as tenants by the entireties (UGMA)(UTMA) (Cust) (Minor) JT TEN (J/T) - as joint tenants with right of under Uniform Gifts to Minors survivorship and not as tenants Act _____________________ in common (State) Additional abbreviations may also be used though not in the above list. For Value Received _____________________________________hereby sell, assign and transfer unto PLEASE INSERT SOCIAL SECURITY OR SOME OTHER IDENTIFYING NUMBER OF ASSIGNEEE - -------------------------------- | | | | - ------------------------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------------------------- PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS OR ASSIGNEE - ------------------------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------------------------- - -------------------------------------------------------------------------------------------------- Shares of the Capital Stock represented by the within Certificate, and do hereby irrevocably constitute and appoint______________________________________________________________________Attorney to transfer the said Stock on the books of the within-named Corporation with full power of substitution in the premises. Dated _____________________ X__________________________________ ___________________________________ NOTICE: THE SIGNATURE TO THIS AGREEMENT MUST CORRESPOND WITH ______________________________________ THE NAME AS WRITTEN UPON THE FACE SIGNATURE GUARANTEE OF THE CERTIFICATE, IN EVERY (BY BANK, CORPORATE OFFICER) PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT, OR ANY CHANGE WHATEVER.