Aero Precision M4e1, Aero Apar600001c M4e1 Lower Strp Blk

The m4e1 lower receiver delivers billet aesthetics in a forged package.It is machined from 7075-t6 aluminum and compatible with all mil-spec ar15 parts.It features an integrated trigger guard, upper tension screw, and an increased magwell flare to aid in quick and efficient magazine changes.Included is a nylon tipped tensioning set screw and threaded bolt catch pin.Rear takedown pin detent hole is threaded for a 4-40 set screw.Threaded bolt catch roll pin (included).Type: Lower ReceiverGun Model: AR-15Gun Type: AR PlatformCaliber: 223 RemMaterial: 7075 AluminumFinish: Black Hardcoat AnodizedTrigger: None