Surefire Muzzle Brake Suppressor Adaptor .308 Cal/7.62mm 5/8-24 Thread
$152.00
The Surefire SFMB muzzle brake suppressor adapter reduces recoil and muzzle rise for faster shot-to-shot recovery. Fits .308 and 7.62mm rifles with 5/8-24 threads.
37 in stock
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. Their 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.
Features:
- 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
- Mounts all SureFire SOCOM Series sound suppressors
- Note: SureFire SOCOM Series Fast-Attach sound suppressors and current-model muzzle brake/suppressor adapters and flash hider/suppressor adapters are not compatible with previous SureFire Fast-Attach sound suppressors muzzle brakes or flash hiders
| Weight | 0.295 lbs |
|---|---|
| Dimensions | 6.350 × 4.550 × 1.500 in |
| Manufacturer | Surefire Llc |
| Thread Pattern | 5/8-24 |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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