2023 model with Collet Lock. 5.45x39mm

Muzzle brake Sputnik is made from stainless steel 35 military HGSA steel. Painted with heat-resistant matte paint. Fits 24x1.5RH thread Unique design of gas ports completely eliminates muzzle rise. Despite its dimensions, it has an extremely low weight 5.4 Oz. Sputnik AK muzzle brake greatly reduces recoil and perfectly stabilizes the barrel thanks to two big jet ports. It will help you to save ammo, and keep your sight on target.