Midwest Industries Alpha Tank Brake Features The Midwest Industries Alpha Tank Brake uses a dual chamber design engineered to deliver maximum reduction in muzzle climb helping shooters stay on target between shots for faster more accurate follow-up engagements. Machined from 416 stainless steel the brake is built to handle the heat and pressure of repeated firing without losing its precise fit or finish over time. This particular configuration is threaded for 1/2x28 matching common 9mm pistol-caliber carbine and AK-47 pattern builds chambered in 9mm. Midwest Industries also offers this brake in 24mm and M14x1LH thread patterns giving shooters flexibility to run it across a range of AK-platform rifles and other hosts. Finished in a durable Black Nitride coating the Alpha Tank Brake resists corrosion and wear while maintaining a sleek low-profile aesthetic that complements modern AK and 9mm carbine builds. At 2.25 inches in diameter and 12 ounces in weight the brake adds meaningful muzzle control without excessive bulk or length on the end of the barrel. A .410 inch bore diameter accommodates the 9mm projectile cleanly through the dual chamber ports. Made in the USA and backed by a lifetime warranty the Midwest Industries Alpha Tank Brake gives AK-47 and 9mm carbine owners a durable effective way to tame recoil and muzzle rise. Midwest Industries Alpha Tank Brake Specifications Manufacturer: Midwest Industries Model: Alpha Tank Brake Compatible Hosts: AK-47 Universal 9mm Thread Pitch: 1/2x28-9mm (also 24mm M14x1LH) Material: 416 Stainless Steel Color: Black Finish: Nitride Diameter: 2.25 Bore Diameter: .410 Weight: 12 oz Caliber: 9mm Available At: GrabAGun