Description
Birchwood Casey’s AR-15 Lower Receiver Block installs to the upper receiver on standard ARs and equivalent rifles with ease and allows users to torque the barrel down to the receiver. Included snap pits pair with the CNC-machined construction to ensure a secure, precise fit you can count on. Clamps in any vise to make cleaning, assembly, disassembly, or repairs simple, while the soft-jaw design prevents marring and damage to the receiver.