Faxon's own competition staff, the Gunner 3 Port Muzzle Brake is the ideal blend of usability, versatility, and recoil reduction. The 3 ports work to sequentially capture the propellant gasses and redirect them to the sides for maximum recoil reduction. On barrels of all lengths, the Gunner significantly reduces felt recoil. Specifications for Faxon Firearms 7.62mm MuzzLok Ported Flash Hider: Manufacturer: Faxon Firearms Color: Black Caliber: 7.62x39mm Finish: Anodized Package Contents: Faxon Firearms 7.62mm MuzzLok Ported Flash Hider