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Aero Precision Carbine Complete Complete Lower Receiver 223 Remington 556NATO – Black
Aero Precision Carbine Complete Lower ReceiverSemi-Automatic223 Remington/556NATOAnodizedBlackFeatures:Mil-spec Lower Parts KitCarbine Receiver extensionAR15 Carbine Buffer and SpringAnodized FinishA2 Grip – BlackStandard Lower Parts KitAR15 Carbine Receiver Extension