Midwest Industries, 9mm Two Chamber Muzzle Brake, 1/2X28, BLK

MI AR-15 9mm/9x19 Two Chamber Muzzle Brake

• Large two chamber design reduces muzzle climb
• Constructed from tool steel with a phosphate finish
• 1/2-28 threads for 9mm/9x19 rifles
• .410" diameter hole
• Includes new crush washer
• 100% made in the U.S.A.
• Lifetime Warranty
• Weight 2.9oz