The Saker® ASR sets the industry standard for ease of use" modularity" and durability. The Saker ASR was designed for bolt action" semi-auto" and full-auto firearms. In addition to its performance" the Saker ASR's design allows for maximum user adaptability and convenience. ASR™ (Active Spring Retention) Mount technology facilitates attachment via a variety of different flash hiders" muzzle brakes" and direct thread mounts. The Hoplon Baffle® deflects debris and increases suppressor lifespan on short barreled rifle and full auto applications using Stellite™ (Saker ASR 556 and Saker ASR 556K only).