Wheeler Ar-15 Upper Vise Block - Clamp

FEATURES
-Optimized for left hand or right hand Mil-Spec A2 upper receivers with carry handles or flattop style receivers
-Safely clamps your AR-15 upper receiver without twisting, crushing, or marring the finish
-Made of a high pressure, solvent resistant polymer material
-Includes a receiver insert with a gas tube alignment system
-Perfect for torqueing a barrel on, removing a stubborn barrel nut, or for simple gun maintenance & cleaning