Our 7.62×39 Muzzle Brake Compensator is perfect for your AR15 chambered in 7.62×39. Precision machined from carbon steel and finished off in black nitride for a sleek black look, this muzzle brake compensator will look great on your AR15 sporter rifle in 7.62×39. Please ensure your barrel is threaded 5/8-24 TPI thread pitch. Please NOTE, this muzzle brake is NOT for an AK47, it is NOT threaded in 14-1 LH threads. This is for a 5/8-24 TPI threaded barrel only. Will work great on an Ar47 ARAK-47 type of build. Will NOT work for an AK 47. All our muzzle brakes include a free crush washer for timing your muzzle brake to your rifle.