Fortis Manufacturing Muzzle Brake .300 BLK 5/8x24 TPI Black Nitride. Like many of our products the machining on thisbraketakes 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 newmuzzlebrakeonce and you'll be glad you did. The performance is unmatched andmuzzlerise is non-existent. Keep your speed and accuracy up. Put more down range and on target.Be sure to verify your thread pitch. Specifications for Fortis Manufacturing .300 BLK Muzzle Brake: Manufacturer: Fortis Manufacturing Color: Black Caliber: .300 AAC Blackout Finish: Nitride Coated Fabric/Material: 4140 Steel Threads per Inch: 5/8x24 Length: 2.28 in Weight: 2.8 oz Included Accessories: Comes with a crush washer Condition: New Features of Fortis Manufacturing .300 BLK Muzzle Brake: 4140 Steel Nitride coated 300BLKOUT 5/8 x 24 TPI Comes with a crush washer 2.8 ounces 2.28 inches Fortis Control Shield compatible Included Accessories: Crush washer Package Contents: Fortis Manufacturing .300 BLK Muzzle Brake Fortis Manufacturing 300BLK-MB: Muzzle Brake .300 BLK 5/8x24 TPI Black Nitride