Yankee Hill Machine115679391
Yankee Hill 26MBA Slant Muzzle Brake Black Steel with 1/2"-28 tpi Threads & 2.50" OAL for 5.56x45mm NATO AR-Platform$77.19
Availability: In Stock
The SureFire PROCOMP556 muzzle brake is purpose-built for AR-15, M16, and M4 rifles chambered in 5.56x45mm NATO, delivering measurable recoil reduction and faster shot-to-shot recovery on the range or in the field. With its offset porting design and SureFire's proprietary Impulse Diffusion geometry, this 1/2"-28 threaded brake minimizes both recoil impulse and muzzle rise, helping your rifle track straight back on target so you stay in the fight longer. Whether you're running drills at an outlaw 3-gun match, stretching shots at distance, or just tightening your group work at the range, the ProComp 556 is engineered to keep your sights where they need to be.
Built from U.S. mill-certified steel and finished in black nitride coating, this brake is designed to handle the abuse of serious use without flinching. The precision-machined construction and high-precision barrel threads ensure a rock-solid interface with your rifle's muzzle, and the 2.50" overall length keeps the package balanced without excessive extension. Best of all, installation requires no permanent modifications to your rifle—swap it in and out as needed.
SureFire included a tuning feature most shooters overlook: a blind pilot hole at the 9 o'clock position lets you fine-tune the brake's recoil characteristics to match your specific shooting style or ammunition. A basic hand drill and the right bits are all you need to customize it. There's also a 6 o'clock pilot hole for shooters who plan to pin and weld their brake. Note that the ProComp 556 is a standalone muzzle device and does not function as a mount or adapter for SureFire Fast-Attach suppressors.
| Caliber | 5.56x45mm NATO |
| Thread Pitch | 1/2"-28 |
| Overall Length | 2.50" |
| Material | U.S. mill-certified steel |
| Finish | Black Nitride |
| Compatibility | AR-15, M4, M16, and variants with 1/2"-28 muzzle threads |
| Installation | No permanent modifications required |
| Tuning | Pilot holes at 9 and 6 o'clock for customization |
Yes, as long as your rifle has 1/2"-28 muzzle threads, which is the standard for 5.56x45mm NATO AR platforms. Installation requires no permanent modifications.
No. The ProComp 556 is a standalone muzzle device and does not serve as a mount or adapter for SureFire Fast-Attach sound suppressors.
SureFire included blind pilot holes at the 9 and 6 o'clock positions to let you customize the brake's recoil character. Using a basic hand drill and appropriate bits, you can fine-tune how the brake performs with your specific shooting style or ammunition. The 6 o'clock hole also accommodates pin-and-weld installations if you plan to permanently attach the brake.
The offset porting design and Impulse Diffusion geometry are engineered to reduce both recoil impulse and muzzle rise, keeping your rifle on target for faster follow-up shots. The tunable design lets you dial in performance for your exact setup and ammunition.
SKU: 115647670 • Width: 1.7in • Height: 0.9in • Depth: 2.8in • Weight: 0.25oz
Availability: In Stock
The SureFire PROCOMP556 muzzle brake is purpose-built for AR-15, M16, and M4 rifles chambered in 5.56x45mm NATO, delivering measurable recoil reduction and faster shot-to-shot recovery on the range or in the field. With its offset porting design and SureFire's proprietary Impulse Diffusion geometry, this 1/2"-28 threaded brake minimizes both recoil impulse and muzzle rise, helping your rifle track straight back on target so you stay in the fight longer. Whether you're running drills at an outlaw 3-gun match, stretching shots at distance, or just tightening your group work at the range, the ProComp 556 is engineered to keep your sights where they need to be.
Built from U.S. mill-certified steel and finished in black nitride coating, this brake is designed to handle the abuse of serious use without flinching. The precision-machined construction and high-precision barrel threads ensure a rock-solid interface with your rifle's muzzle, and the 2.50" overall length keeps the package balanced without excessive extension. Best of all, installation requires no permanent modifications to your rifle—swap it in and out as needed.
SureFire included a tuning feature most shooters overlook: a blind pilot hole at the 9 o'clock position lets you fine-tune the brake's recoil characteristics to match your specific shooting style or ammunition. A basic hand drill and the right bits are all you need to customize it. There's also a 6 o'clock pilot hole for shooters who plan to pin and weld their brake. Note that the ProComp 556 is a standalone muzzle device and does not function as a mount or adapter for SureFire Fast-Attach suppressors.
| Caliber | 5.56x45mm NATO |
| Thread Pitch | 1/2"-28 |
| Overall Length | 2.50" |
| Material | U.S. mill-certified steel |
| Finish | Black Nitride |
| Compatibility | AR-15, M4, M16, and variants with 1/2"-28 muzzle threads |
| Installation | No permanent modifications required |
| Tuning | Pilot holes at 9 and 6 o'clock for customization |
Yes, as long as your rifle has 1/2"-28 muzzle threads, which is the standard for 5.56x45mm NATO AR platforms. Installation requires no permanent modifications.
No. The ProComp 556 is a standalone muzzle device and does not serve as a mount or adapter for SureFire Fast-Attach sound suppressors.
SureFire included blind pilot holes at the 9 and 6 o'clock positions to let you customize the brake's recoil character. Using a basic hand drill and appropriate bits, you can fine-tune how the brake performs with your specific shooting style or ammunition. The 6 o'clock hole also accommodates pin-and-weld installations if you plan to permanently attach the brake.
The offset porting design and Impulse Diffusion geometry are engineered to reduce both recoil impulse and muzzle rise, keeping your rifle on target for faster follow-up shots. The tunable design lets you dial in performance for your exact setup and ammunition.
SKU: 115647670 • Width: 1.7in • Height: 0.9in • Depth: 2.8in • Weight: 0.25oz