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What does a muzzle brake do?

A muzzle brake is a device that is attached to the muzzle (end) of a gun barrel that is designed to reduce the recoil of the gun. When a gun is fired, the bullet and gas are expelled from the barrel, causing the gun to recoil or kick back. The muzzle brake redirects some of the gas and pressure to the sides and back of the gun, which helps to counterbalance the recoil and reduce the felt recoil. Muzzle brakes are commonly used on rifles and other firearms that have a significant amount of recoil, such as heavy caliber rifles, to make them more comfortable to shoot. Some shooters also use muzzle brakes to help reduce the climb of the gun when firing rapidly, which can help to improve accuracy.