Features: * The INTRAFUSE AK Slot Muzzle Brake is perfect to help with the tough AK muzzle climb * The 5 top slots and the 6 side ports (3 on each side) let you get more control of your AK * Finished in a manganese phosphate on high strength steel, this brake can handle thousands of rounds * With a 14 x 1 LH threading this rugged brake will install in seconds on a standard threaded AK barrel * Designed for use on AK"s with a standard left hand threaded barrel * 14 x 1 LH thread pitch * Manufactured from steel * Manganese Phosphate finish * Counts as 1 U.S. 922r compliant part What"s In The Box: * Tapco AK0688 AK Slot Muzzle Brake