The Brownells Short Muzzle Brake is designed for AR-15s, providing maximum braking with minimal length increase, featuring a 1-inch overall length and 0.75-inch outer diameter.
It has two rows of 0.125-inch ports for even gas distribution, wrench flats for easy installation, and is available in tool steel with a black oxide finish or stainless steel.
The muzzle brake fits .22 caliber (specifically .223-.224) with 1/2-28 threads and should not be used with bullets larger than .223/5.56 in diameter.