Our 7.62×39 Muzzle Brake Compensator is perfect for your AK-47 chambered in 7.62×39. Precision machined from carbon steel and finished off in mag phosphate for a sleek black look, this muzzle brake compensator will look great on your AK-47 sporter rifle in 7.62×39. Please ensure your barrel is threaded 14-1 LH TPI thread pitch. Please NOTE, this muzzle brake is NOT for an AR15, it is NOT threaded in 5/8-24 threads. This is for a 14-1 LH TPI threaded barrel only. Will NOT work for an AR15 in 7.62×39, has to be an AK-47. This muzzle brake does NOT include a crush washer as it is not required for the AK-47 platform. It self aligns with the machined notch.