M1 Self-timing Muzzle Brake - Stainless Steel

Built from 17-4 stainless steel Lightweight effective design 3 Ports Self-timing Brake Easy to mount Weight: 1.6-2.9 Oz 2.125" overall length Ports designed to keep muzzle jump down .22 blank is built with a .22 caliber pilot hole and meant to be bored out by a gun smith to a specific caliber.  .223 caliber good for any caliber up to and including .223  6.5 mm caliber good for any caliber up to and including 6.5 mm .30 caliber good for any caliber up to and including .308 LOCK NUT IS A LEFT HANDED THREAD! Muzzle brakes have right handed internal threads. When possible some form of thread anti-seize is recommended on the barrel thread prior to brake installation. If a product is marked as "UNAVAILABLE" it means its a product sku we do not produce and is not available for purchase. If its marked "OUT OF STOCK" we do produce it but it is just currently out of stocked inventory, we do not sell past our stocked inventory.  0.725" only comes in 1/2-28 TPI, 0.850" is the smallest we produce