Shop a Variety of Barrels, Complete Upper Receivers, Stocks and more for your .300 AAC Blackout AR-15 – Made by Guntec USA

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AR-15 Upper Receiver Assembly Kit (Flat Dark Earth)

(2 customer reviews)
$59.95 $48.56

AR-15 Mil-Spec Plain Buffer Tube ( Flat Dark Earth)

(1 customer review)
$32.95 $26.69

AR-15 Mil-Spec Buffer Tube Set (Zombie Green)

(1 customer review)
$59.95 $48.56

AR-15 Lower Upgrade Kit Enhanced (L.U.K.E) (Blue)

(1 customer review)
$79.95 $64.76

AR-15 / AR-308 Extended Mag Catch Paddle Release

(1 customer review)
$21.95 $14.95