FFL IS REQUIRED
Extreme Forged High Quality, CM4 5.56 Forged Lower Receiver 7075-T6 Aircraft Grade Aluminum. Receivers Machined from Aluminum Forgings 7075-T6. Low Shelf, MIL-Spec, M16/Auto Pocket. Not the Typical Lower receiver. This Lower designed to support full auto sear capability (NFA item). Stripped Lower Receiver Low Shelf Cut Ar15 M16 M4 Auto Forged.CM4 M4 Lower Receiver Low Shelf Cut Ar15 M16 M4 Low Shelf. This is also can use on AR15 Lower Receiver, M4 Lower Receiver , M16 Lower Receiver.