LANTAC USA manufactures the highest quality accessories for AR-15/M16 pattern rifles. Precision made in the U.S.A., rifles, muzzle brakes and more.The LANTAC Dragon offers improved recoil management and muzzle rise. Featuring a unique Short Energy Pulse system which reduces the length of recoil. This mitigates repeating shot energy preventing overlap that can knock the shooter off target. Ultra-Fast Attenuation of muzzle blast gasses aids in reducing side blast and muzzle flash. Even with fully automatic fire it offers massively reduced recoil and muzzle climb, so all shots can fall on target.Features: 1/2x36 thread pitch 9mm Short Energy Pulse system Ultra-Fast Attenuation Hardened MIL-SPEC steel Manganese phosphate finish Serial numbered for quality control Crush washer included California legal Length: 2.660'' Diameter: 0.9'' Weight: 2.8 oz Made in the U.S.A.