APAR600112

Aero Precision M4E1Complete Lower ReceiverSemi-automatic223 Remington/556NATONo StockA2 GripAnodizedBlackFeatures:M4E1 Stripped Lower Receiver – Anodized BlackA2 Grip – BlackMil-spec Lower Parts KitAR15 Carbine Receiver ExtensionAR15 Carbine Buffer and Spring