Vostok is an AK style muzzle brake from Ultradyne, it provides exceptional performance in compact design. Gases are strategically diverted away and out of the shooters line of sight. Vostok strongly reduces recoil and minimizes muzzle rise helping the shooter get back on target quicker to ensure a more accurate followup shots.FeaturesRated for 7.62x39100% CNC Machined416 Stainless Steel with ultra-rugged salt bath nitride finish