Precision Armament Hypertap Muzzle Brake Slim for 7.62mm/.308 Caliber. Built around the Hypertap Hybrid Baffle Design with Convergent-Divergent ports to deliver high recoil reduction. Features include: 84% recoil reduction, safe baffle angles, generous bore clearance, low gas blowback, zero flash increase, and full user tunability of gas biasing. Includes an integrated universal timing nut for quick field installation and removal with standard wrenches. Lightweight and compact with a rugged 17-4 stainless steel construction and Ionbond CrCN finish for durability. Inner diameter 0.9 in, length 2.54 in. Weight 2.9 oz. Includes two stainless spanner wrenches. Made in USA.