ProMag PM123A Lower Receiver Vise Block Set Black Polymer Rifle AR-15 M16 3 Pieces

The AR-15/M16 Upper and Lower Receiver Magazine Well Vise Block Set securely clamps all flat top and carry handle AR-15/M16 upper and lower receiver components. Helps to prevent damage or movement during repair assembly and cleaning. Three piece set of heavy duty blocks for AR-15 /M16 upper and lower receiver. Made in the USA.