The KeyMo Zero quick detach mount is a muzzle device that gives you a lightweight minimalist mounting option offering a faster and more repeatable attachment method. When it comes to removal, the suppressor can be easily removed without carbon-locking onto the mount just like all our Keymo and Keymicro muzzle devices. All this while still delivering the durability you ve come to expect from a Dead Air mount. The shorter size decreases its entrance into the blast chamber, maximizing sound performance and minimizing overall weight. The KeyMo Zero is compatible with all Dead Air KeyMo and Keymicro adapter equipped silencers. NOTE: Please consider the caliber limitations of the suppressor when mounting the KeyMo Zero on your rifle. Product Specifications Material: 4140HT - Chromium-Molybdenum Heat Treated Steel Finish: Black Nitride Length: 1.385" Weight: 2.4oz. Outside Diameter: 1.08" Through Bore: 9MM/.357 Tool Features: 3/4 wrench and socket feature