The newly redesigned Saker ASR sets the industry standard for durability and modularity at an affordable price. The Saker ASR was designed for use with 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 and muzzle brakes with an additional option of direct thread mounting. – CALIBER: 5.56mm – WEIGHT: 14.2 oz – DIAMETER: 1.50 – LENGTH: 5.46-6.42 – MATERIAL: Stellite & Stainless Steel – MUZZLE AVERAGE – 5.56mm: 136.1 dB