FEATURES: Recoil compensator for AK-47 style rifles 14x1 left hand threads Includes polymer washer to mate solidly against the front sight tower Washer is heat resistant up to 900 degrees Length: 1.95" Diameter: .875" Weight: 2.4 oz. Matte black finish For use on weapons with a bullet diameter equal to or less than .30 cal or 7.62mmBENEFITS: Recoil compensator that not only lessens the recoil of your AK-47, but does so without a significant increase in blast noise directed toward the shooter or individuals next to the shooter Included washer and notched rear end ensure proper indexing of ports Matte black fin Mfg: Primary Weapons