Fortis Manufacturing 5.56MM Barrel Black Muzzle Brake / Control Compatible 556-MB-BLK. Like many of our products the machining on this brake takes a lot longer than the competition. We take our time to create the very best products out there. Sure we can make it more simple and in the end fatten the profit margins -- but we owe it to our customers to create not only a product but an amazing experience. Try the new muzzle brake once and you'll be glad you did. The performance is unmatched and muzzle rise is non-existent. Keep your speed and accuracy up. Put more down range and on target. Compatible with our new Fortis Control shield. Features 4140 Steel Nitride coated For the .223 / 5.56 1/2 x 28 TPI Comes with a crush washer 2.8 ounces 2.28 inches Fortis Control Shield compatible Specifications for Fortis Manufacturing 5.56MM Barrel Muzzle Brake / Control Compatible: Manufacturer: Fortis Manufacturing Caliber: 5.56x45mm NATO .223 Remington Gun Model: AR-15 Condition: New Package Contents: Fortis Manufacturing 5.56MM Barrel Muzzle Brake / Control Compatible What firearm models does the manufacturer say Fortis Manufacturing 5.56MM Barrel Muzzle Brake / Control Compatible is compatible with? The manufacturer suggests that Fortis Manufacturing 5.56MM Barrel Muzzle Brake / Control Compatible is compatible with AR-15Our Fortis Muzzle Brake was inspired by the sharp lines of our brand. Like many of our products the machining on this brake takes a lot longer than the competition. We take our time to create the very best products out there. Sure we can make it more simple and in the end fatten the profit margins -- but we owe it to our customers to create not only a product but an amazing experience. Try the new muzzle brake once and you'll be glad you did. The performance is unmatched and muzzle rise is non-existent. Keep your speed and accuracy up. Put more down range and on target.Compatible with our new Fortis Control shield. Features/Specifications: 4140 SteelNitride coatedFor the 5.56 / .2231/2 x 28 TPI2.8 ounces2.28 inchesCrush washer includedmade in specialized factoriesFortis Control Shield compatible Included Accessories: crush washer