ProMag AR-15 / M16 Upper and Lower Receiver Magazine Well Vise Block Set PM123A

AR-15 / M16 Upper and Lower Receiver Magazine Well Vise Block Set 3 pcs set of heavy duty blocks securely clamp all flat top and carry handle AR-15/M16 upper and lower receiver components to prevent damage or movement during repair, assembly and cleaning. Constructed of impact resistant glass filled nylon.