So, everything is assembled correctly, and no permanent damage has been done. But there are some lessons to be learned from this. More and more rifles are becoming available with muzzles that are threaded for brakes, flash suppressors, or noise suppressors. Don’t rush right out and buy one of these devices without doing some research. If, for example, you get a Ruger Precision Rifle to compete in F-Class matches and screw a muzzle brake on it, you’ll discover that muzzle brakes are not allowed.