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Conversion Kits

Conversion Kits

Conversion Kits

Transform your AR with our collection of conversion kits, and see for yourself why the AR platform is truly "plug and play." Whether you're looking to plink with a .22LR conversion kit or you want to shoot .300 BLK or various other rifle calibers, we've got you covered with the best kits from brands like CMMG. Each conversion kit makes changing your rifle caliber a snap, and often times you'll be able to fire several calibers from your one trusted rifle.

Don't be content with just one caliber, get your rifle geared up to fire many with the top conversion kits for less direct from GritrSports.com.

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  • ERGO 5-Piece AR-15 Upper Receiver Spring Kit (4611)
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    ERGO 5-Piece AR-15 Upper Receiver Spring Kit (4611)

    Ergo

    $21.33
    Ejector SpringForward Assist SpringPort Cover SpringExtractor SpringExtractor Spring Buffer The ERGO AR-15 Upper Receiver Spring Kit includes 5-piece all the factory-weight springs needed to finish building up a stripped upper receiver or refurbish an...
    $21.33
    Add to Cart
  • ERGO 9-Piece AR-15 Lower Receiver Spring Kit (4612)
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    ERGO 9-Piece AR-15 Lower Receiver Spring Kit (4612)

    Ergo

    $22.44
    Bolt Catch SpringDisconnector SpringBuffer Retainer SpringTrigger SpringMagazine Catch SpringHammer SpringSelector SpringTwo Detent Springs The ERGO AR-15 Lower Receiver Spring Kit includes 9-piece all the factory-weight springs needed to finish...
    $22.44
    Add to Cart