Aero Precision M4A1 Clone Complete Lower Receiver 5.56 NATO Semi-Auto Rifle Lower - AER APAR501145

This Aero Precision M4A1 Clone Complete Lower Receiver is chambered in 5.56 NATO and features a semi-auto action with custom Aero Precision engraving and authentic M4 carbine markings. The complete lower comes pre-assembled with a standard collapsible stock, A2 grip, lower parts kit, receiver extension, and carbine buffer kit, ready for upper receiver integration.