Short, 6 Port Muzzle Brake for AK47 14x1 LH. This short 6 port AK brake works well for a compact brake. Threaded in 14x1LH LH for most AK47 barrels. Detent notch is cut specifically to align the brake with the proper timing on the ports. 2 on each side and 2 on top to help control muzzle climb.