Brand new SureFire SFMB muzzle brake suppressor adapters greatly reduce both recoil impulse and muzzle rise so that your weapon tracks straight back, keeping you on target for faster shot-to-shot recovery. The proprietary Impulse Diffusion design minimizes side blast and rear-directed concussion effects. Precision machined from U.S. mill-certified heat-treated stainless steel bar stock and DLC-coated for extreme durability, they are available for a variety of weapon calibers and muzzle thread specs, and every SFMB serves as a rock-solid mounting adapter for SureFire’s combat-proven SOCOM Series Fast-Attach® suppressors. The SFMB design incorporates multiple bearing surfaces to ensure superior suppressor alignment. Blind pilot holes at the 3 o’ clock and 9 o’clock positions enable fine-tuning of recoil characteristics for individual shooting styles or ammunition characteristics. Blind pilot holes at the 6 o’clock position enable indexing the adapter at bottom dead center. All that’s required is a basic hand drill and appropriate drill bits. Offset porting delivers greatly reduced recoil impulse and muzzle rise, so the weapon tracks straight back to keep you on target for faster shot-to-shot recovery Multiple bearing surfaces for superior suppressor alignment Precision machined from U.S. mill-certified heat-treated stainless steel bar stock High-precision single-point cut barrel threads for optimum thread interface Inspected for all critical dimensions including concentricity and alignment Pilot holes for tuning of muzzle brake and to pin-and-weld to rifle barrel as needed DLC coating provides maximum protection against harsh environmental conditions and facilitates cleaning after extreme use Serves as rock-solid mounting adapter for SureFire SOCOM Series sound suppressors Labyrinth seals prevent carbon buildup on suppressor lock ring indexing system Model Number: SFMB-762-M18x1.5 Caliber: .308(7.62) Thread Pitch: M18X1.5