Description
The SureFire ProComp 556 is a standalone muzzle brake engineered for rifles with 1/2-28 muzzle threads, including M4/M16 and AR-15 variants. Its Impulse Diffusion porting is designed to reduce recoil impulse and muzzle rise so the rifle tracks straight back for faster follow-up shots. Precision machined from U.S. mill-certified steel and finished in black nitride/Melonite, the ProComp is built for durability in demanding environments. Note that this model is not intended to serve as a mount or adapter for SureFire SOCOM/fast-attach suppressors.
Key Specifications
- The brand is SureFire.
- The model is ProComp 556.
- Designed for .223 Rem / 5.56 NATO chamberings as listed.
- The thread pattern is 1/2-28 tpi.
- Constructed from steel machined from U.S. mill-certified bar stock.
- The finish is listed as black nitride / Melonite.
- Features SureFire’s patented design that minimizes side blast and rear-directed concussion.
- Includes a blind pilot hole at the 9 o’clock position for recoil tuning.
- Intended as a standalone muzzle brake and does not serve as a mount/adapter for SureFire fast-attach suppressors.
The ProComp 556 combines precision machining and SureFire’s proven porting geometry to deliver repeatable, controllable recoil characteristics for range use, training, and tactical-style shooting applications. Its durable finish and stout steel construction provide long service life and dependable performance under regular use.






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