Gemtech Series ETM 3-Port Muzzle Brake 5.56 1/2×28

Features:

• Unmatched reliability in alignment with ETM equipped suppressors
• 2.375" long pre-dimpled for pin and weld to 14.5" barrel
• Virtually eliminates the possibility of carbon locking with a suppressor attached
• Length: 2.37 In
• Weight: 2 Oz
• Caliber: 5.56mm
• Mount Type: 1/2-28
• Color/finish: Black