The Snowy Mountain Rifle Company Snowflake Muzzle Brake was designed to bridge the gap between hunting and competition rifles while using the same self-timing brake on both platforms. Lighter, faster, and more robust. They come with best-in-class recoil reduction and muzzle rise. FeaturesMost effective port design & recoil reduction availableLocking collar for a one-handed installation & clean fit3/8" Allen wrench for installation & torquingFlat for bubble level