<SUBMISSION>
<ACCESSION-NUMBER>0001209191-09-002656
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20090108
<FILING-DATE>20090109
<DATE-OF-FILING-DATE-CHANGE>20090109
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>ARGYLE SECURITY, INC.
<CIK>0001332585
<ASSIGNED-SIC>7381
<IRS-NUMBER>203101079
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>200 CONCORD PLAZA
<STREET2>SUITE 700
<CITY>SAN ANTONIO
<STATE>TX
<ZIP>78216
<PHONE>210-828-1700
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>200 CONCORD PLAZA
<STREET2>SUITE 700
<CITY>SAN ANTONIO
<STATE>TX
<ZIP>78216
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>Argyle Security Acquisition CORP
<DATE-CHANGED>20050708
</FORMER-COMPANY>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>MEZZANINE MANAGEMENT FUND IV A
<CIK>0001367487
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-51639
<FILM-NUMBER>09519846
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>CENTURY HOUSE 16 PAR LA VILLE RD
<CITY>HAMILTON BERMUDA
<STATE>D0
<ZIP>00000
<PHONE>441-296-8099
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>CENTURY HOUSE 16 PAR LA VILLE RD
<CITY>HAMILTON BERMUDA
<STATE>D0
<ZIP>00000
</MAIL-ADDRESS>
</REPORTING-OWNER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>MEZZANINE MANAGEMENT LTD
<CIK>0001434284
<STATE-OF-INCORPORATION>D0
<FISCAL-YEAR-END>1231
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-51639
<FILM-NUMBER>09519848
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>CENTURY HOUSE, 16 PAR LA VILLE ROAD
<CITY>HAMILTON
<STATE>D0
<ZIP>HM 08
<PHONE>203.323.9118
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>C/O MEZZANINE MANAGEMENT, LLC
<STREET2>333 LUDLOW STREET, 2ND FL, NORTH TOWER
<CITY>STAMFORD
<STATE>CT
<ZIP>06902
</MAIL-ADDRESS>
</REPORTING-OWNER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>MEZZANINE MANAGEMENT FUND IV COINVEST A L.P.
<CIK>0001434285
<STATE-OF-INCORPORATION>X0
<FISCAL-YEAR-END>1231
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-51639
<FILM-NUMBER>09519847
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>CENTURY HOUSE, 16 PAR LA VILLE ROAD
<CITY>HAMILTON
<STATE>D0
<ZIP>HM 08
<PHONE>203.323.9118
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>C/O MEZZANINE MANAGEMENT, LLC
<STREET2>333 LUDLOW STREET, 2ND FL, NORTH TOWER
<CITY>STAMFORD
<STATE>CT
<ZIP>06902
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c79373_4x0.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-01-08</periodOfReport>

    <issuer>
        <issuerCik>0001332585</issuerCik>
        <issuerName>ARGYLE SECURITY, INC.</issuerName>
        <issuerTradingSymbol>ARGL.OB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001434284</rptOwnerCik>
            <rptOwnerName>MEZZANINE MANAGEMENT LTD</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>MML CAPITAL PARTNERS   333 LUDLOW STREET</rptOwnerStreet1>
            <rptOwnerStreet2>2ND FLOOR, NORTH TOWER</rptOwnerStreet2>
            <rptOwnerCity>STAMFORD</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06902</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001434285</rptOwnerCik>
            <rptOwnerName>MEZZANINE MANAGEMENT FUND IV COINVEST A L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>MML CAPITAL PARTNERS   333 LUDLOW STREET</rptOwnerStreet1>
            <rptOwnerStreet2>2ND FLOOR, NORTH TOWER</rptOwnerStreet2>
            <rptOwnerCity>STAMFORD</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06902</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001367487</rptOwnerCik>
            <rptOwnerName>MEZZANINE MANAGEMENT FUND IV A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>MML CAPITAL PARTNERS   333 LUDLOW STREET</rptOwnerStreet1>
            <rptOwnerStreet2>2ND FLOOR, NORTH TOWER</rptOwnerStreet2>
            <rptOwnerCity>STAMFORD</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06902</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Series B Convertible Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.10</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2009-01-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>27273</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.10</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <footnoteId id="F2"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The Series B Convertible Preferred Stock is convertible at any time at the holder's election and has no expiration date.</footnote>
        <footnote id="F2">The Series B Preferred Stock is convertible into 2,727,300 shares of common stock, subject to adjustment for certain anti-dilution protection.  The Series A Preferred Stock is convertible into 1,875,000 shares of common stock, subject to adjustment for certain anti-dilution protection.  As a result, immediately following this transaction, 4,602,300 shares of common stock will be beneficially owned by the reporting persons through a &quot;group&quot; for purposes of Section 13D of the Exchange Act.  The group is composed of the following entities and individuals: Mezzanine Management Fund IV A, L.P. (&quot;Fund IV&quot;), Mezzanine Management Fund IV Coinvest A, L.P. (&quot;Coinvest&quot;), Mezzanine Management Limited (&quot;Mezzanine&quot;), Rory Brooks (&quot;Brooks&quot;) and James Read (&quot;Read&quot;).  Fund IV shares voting and dispositive power over 4,532,600 of the shares.  Coinvest A shares voting and dispositive power over 69,700 of the shares.  Mezzanine, Brooks and Read share voting and dispositive power over all 4,602,300 shares.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Dudley R. Cottingham, Authorized Signatory</signatureName>
        <signatureDate>2009-01-09</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Dudley R. Cottingham, Authorized Signatory</signatureName>
        <signatureDate>2009-01-09</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Dudley R. Cottingham, Authorized Signatory</signatureName>
        <signatureDate>2009-01-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
