The Heavy-duty AR15/M16 Lower Receiver Vise Block Fits into AR magazine housing from either the top or bottom simply clamp the other end in your bench vise and block allows safe mounting of the AR15/M16 lower receiver into a vise. Receiver Vise Block Securely holds the rifle for assembly, disassembly, cleaning, or repair. Will not distort or damage the receiver. Solvent resistant polymer construction.
