Precision Armament Hypertap Ti Muzzle Brake is a ultralight titanium muzzle device designed for ultralight rifles. It is made from Grade 5 titanium and finished in DLC Matte Black, offering up to 80% recoil reduction depending on cartridge and bullet weight. Features a 3-baffle design with a 35 degree baffle angle, pre-drilled top ports to counter muzzle climb, an integrated timing nut, and a self-timing installation (no shims or crush washers). Specifications: Threads per inch 5/8x24, Outer diameter 0.9 in, Length 2.11 in. Minimum recommended barrel length 14.5 in. Package contents: Precision Armament Hypertap Ti Muzzle Brake, QTY 2 Spanner Wrenches.