Breakthrough Msr Armourers Wrench

The Breakthrough Clean Armorer's Wrench is the ultimate tool for your AR15/M4. Constructed out of durable titanium-plated stainless steel and includes a standard size muzzle device wrench.

Easily installs and removes receiver extensions and castle nuts, functioning with both Mil-Spec and Pin-Style Barrel Nuts.

Compatible with Socket / Torque wrench and comes with a bonus Butt Stock Screwdriver.