SLR Rifleworks is probably most known for their rails and gas blocks but they actually have a huge lineup of muzzle brakes as well. Today they introduced another muzzle device to the family called the SR22 5.56 Single Port Brake. The SR22 5.56 Single Port Brake is just a nicely done muzzle brake with a single port which the name kind of already told you. 🙂 It is made of 416R Stainless Steel with a Melonite finish and is threaded for 1/2×28 barrels. The new SR22 5.56 single port brake should be up on the SLR Rifleworks website literally any minute now.