Mounting options for silencers have grown in number over the past few years. With an endless number of thread pitches and directions, some have sought to improve upon the current system. One such company is Dead Air Silencers, who brought the KeyMo mounting system to market. Primary Arms and Expo Arms came together to provide a new muzzle device that works with this mounting system. This is the new Expo Arms KeyMo 1/2x28mm Muzzle Brake.
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