AR10 .308 7.62 3.5 inch 12 Port Mitigator Steel Muzzle Brake Compensator 5/8x24 Thread Pitch (Includes Jam Nut) - Total War Tactical
Browning Recoil Hawg Muzzle Brake Burnt Bronze 30 Cal w/ 5/8-24 and 1/2-28 Thread Adapters – International Shooting Supplies