Surefire 5.56 muzzle brake / adapter - SureFire Socom Muzzle Brake/Suppressor Adapter

Works as advertised. It was easy to install with the included spacer rings and instructions. A nice feature is the chart which shows you the correct number and color of spacers to add to the barrel to ensure it is oriented correctly when tightened. You don't really need a torque wrench, you just add the spacers and turn the device until it is oriented to 12 o'clock. I like the adapter function. Here in the PRK (People's Republik of Kalifornia) I don't have to worry about adding suppressor but it did put on the Warden blast diffuser and it is quick and easy. Yes, this device is expensive and I would say I'm sure you can find much less expensive devices if you don't want or need the adapter function but if you want that it works great.