The KeyMicro Flash Hider is a short, lightweight flash hider suited for a variety of platforms. Designed for use with our KeyMicro Adapter, it functions as a minimalist flash hider on its own. Pair them together for the ultimate mounting platform. This is the same technology found in our industry-best KeyMo system. The KeyMicro muzzle devices are also compatible with our KeyMo Adapter. SPECIFICATIONS: Material - 4140 HT Alloy Steel Finish - Black Nitride Overall Length - 2.063a ^2 Weight - 3.36 - 3.52 oz Threads - 1/2-28, 1/2-28 SIG TAPER, 5/8-24, 5/8-24 SIG TAPER, M13.5-1LH Through Bore - 1/2-28; 9MM / 1/2-28 SIG TAPER; .22 / 5/8-24; 9M Mfg: Dead Air Armament