SureFire SFMB-556 1/2-28 Muzzle Brake & Suppressor Adapter

SureFire SFMB-556 1/2-28 Muzzle Brake and Suppressor Adapter

The SureFire SFMB-556 is a precision-engineered muzzle brake and suppressor mounting adapter designed for 5.56 NATO rifles with 1/2-28 muzzle threads. This dual-purpose device delivers measurable performance improvements whether you're running it as a standalone brake or pairing it with a SureFire SOCOM Series suppressor.

Performance and Design

The SFMB-556 employs SureFire's proprietary Impulse Diffusion design to significantly reduce both recoil impulse and muzzle rise. This means your rifle tracks straight back during recoil, keeping you on target for faster shot-to-shot recovery. The offset porting minimizes side blast and rear-directed concussion effects—a critical consideration for shooters concerned about hearing protection and shooting comfort.

Construction and Durability

• Material: Precision-machined from U.S. mill-certified, heat-treated stainless steel bar stock
• Threads: High-precision single-point cut threads ensure optimum interface with your barrel
• Coating: Hard-anodized DLC (Diamond-Like Carbon) finish provides maximum protection against harsh environmental conditions and facilitates cleaning after extreme use
• Quality Control: Inspected for all critical dimensions including concentricity and alignment

Suppressor Mounting

The SFMB-556 serves as a rock-solid mounting adapter for all SureFire SOCOM Series 5.56mm Fast-Attach suppressors. Multiple bearing surfaces ensure superior suppressor alignment and indexing. A rear labyrinth seal minimizes carbon buildup on the suppressor lock ring, making removal easier after extended firing sessions.

Customization Options

The SFMB-556 features blind pilot holes at the 3 o'clock and 9 o'clock positions, allowing you to fine-tune recoil characteristics for your specific shooting style or ammunition preferences. An additional pilot hole at the 6 o'clock position enables bottom-dead-center indexing. All you need is a basic hand drill and appropriate drill bits to customize your brake.

Pin and Weld Capability

If you need a permanently attached muzzle device for legal compliance, the SFMB-556 can be pinned and welded to your barrel using the provided pilot holes.

The SureFire SFMB-556 is a versatile, durable solution for shooters who demand both superior recoil management and suppressor compatibility.