-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Bs7VhorMeFhH1BUmLBx4RmzsbB3XLoXPl5R+mYfV+XR1kVF2G/1oErZMw/wCoXy2
 vJ0IuP14Kdk8mfqAIlEblw==

<SEC-DOCUMENT>0001125282-05-005013.txt : 20050929
<SEC-HEADER>0001125282-05-005013.hdr.sgml : 20050929
<ACCEPTANCE-DATETIME>20050929105032
ACCESSION NUMBER:		0001125282-05-005013
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050929
FILED AS OF DATE:		20050929
DATE AS OF CHANGE:		20050929

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GTSI CORP
		CENTRAL INDEX KEY:			0000850483
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-COMPUTER & PERIPHERAL EQUIPMENT & SOFTWARE [5045]
		IRS NUMBER:				541248422
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3901 STONECROFT BLVD
		CITY:			CHANTILLY
		STATE:			VA
		ZIP:			20151-0808
		BUSINESS PHONE:		703-502-2000

	MAIL ADDRESS:	
		STREET 1:		3901 STONECROFT BLVD
		CITY:			CHANTILLY
		STATE:			VA
		ZIP:			20151-1010

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MUTRYN THOMAS A
		CENTRAL INDEX KEY:			0001082025

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19394
		FILM NUMBER:		051110025

	BUSINESS ADDRESS:	
		STREET 1:		GALILEO INTERNATIONAL INC
		STREET 2:		9700 HIGGINS RD STE 400
		CITY:			ROSEMONT
		STATE:			IL
		ZIP:			60018

	MAIL ADDRESS:	
		STREET 1:		GALILEO INTERNATIONSAL INC
		STREET 2:		9700 HIGGINS RD STE 400
		CITY:			ROSEMONT
		STATE:			IL
		ZIP:			60018
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-09-29</periodOfReport>

    <issuer>
        <issuerCik>0000850483</issuerCik>
        <issuerName>GTSI CORP</issuerName>
        <issuerTradingSymbol>GTSI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001082025</rptOwnerCik>
            <rptOwnerName>MUTRYN THOMAS A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3901 STONECROFT BLVD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CHANTILLY</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>20151</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>SR VP and CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>8.09</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2005-09-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>25000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2012-07-21</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>25000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>160000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Grant Date is July 21, 2005 - 8,500 shares vest on 3rd anniversary of Grant Date-July 21, 2008; 8,250 shares vest on 4th anniversary of Grant Date-July 21, 2009; and 8,250 shares vest on 5th anniversary of Grant Date-July 21, 2010</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Thomas A. Mutryn</signatureName>
        <signatureDate>2005-09-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----