Engineered for use with suppressors that use the Xeno mounting system developed by Dead Air Silencers, the Xeno Recoil Hawg is designed to reduce felt recoil by as much as 70% (depending on the caliber). The Xeno Recoil Hawg allows you to quickly and accurately mount most Hub compatible suppressors with the use of a Xeno adaptor (not included) added to your suppressor. Recoil Hawg muzzle brakes reduce felt recoil by directing gases to the sides for less discomfort and fatigue. In addition to less felt recoil, accuracy is also less likely to suffer because of a reduction in shooting fatigue and flinching. The Xeno Recoil Hawg includes a shim kit for correct port alignment. Features: Multi-port design reduces felt recoil up to 70% (depending on caliber) Quickly and accurately mount most Hub compatible suppressors; with the use of Xeno adaptor Maintains consistent point of impact Shim kit included for brake port alignment Ports direct gases to reduce muzzle rise Lightweight, rugged all-steel construction Ideal for hunters and precision shooters Available for Browning rifles with proprietary M13 threads .30 caliber bore