Aero Precision Ar-15 M4e1 Stripped Lower Receivers 5.56mm - Ar-15 M4e1 Stripped Lower Receiver Black 5.56mm

Aero Precision's M4E1 Stripped Lower Receiver delivers the strength and unique looks of a billet machined lower, with the lower cost, lighter weight, and easy parts compatibility of a forged lower. The M4E1 starts as an "enhanced" forging from extra-stron