Muzzle brake with intregral fron sight is designed to fit the mini-14 only. Easy to install muzzle brake with both holes and slots to drastically reduce recoil and muzzle flip. Requires no gunsmithing and allows you to keep your current front sight in place. Legal to own, this is a muzzle brake, NOT a flash hider. New in package. Not manufactured by Ruger. Does not fit guns with serial number above 195-range, the barrel diameter is too large.