Slot Brake (Muzzle Brake) 5.56 Caliber with 1/2-28 Threads for the AR Platform
About SB-15
Our Slot Brake muzzle brake mimics the aesthetics of a flash hider, but in a muzzle brake design (it does not act as a flash hider). This is a great muzzle device for rifles, AR pistols, and featureless rifles in restricted states. Chambered in 5.56 (.223) with 1/2-28 threads.
The slot ports are ramped which allows gasses to blast forward while still mitigating some recoil. This design
greatly reduces the concussive blast felt by the shooter and anyone standing to the sides. The front conical crown also forces blast forward. Typical ported muzzle brakes do an excellent job mitigating recoil, BUT their ports direct gasses and the concussive blast to the sides and back toward the shooter which can be uncomfortable. Customers have been expressing this issue to us and we listened. The closed bottom also prevents gasses from blasting downward and
kicking up dust, dirt, or gravel when in prone positions.
The length is perfect to bring a 14.5 inch barrel out to 16+ inches (when used with shims or a crush washer) to help you meet minimum length regulations when permanently attached, and the bottom is spot drilled for the pin location if needed.
Precision Machined from a hardened 416 stainless steel which is highly corrosion resistant and very strong. There are two color options, matte black nitride and raw stainless steel. Made in USA!
- 5.56 (.223) caliber with 1/2-28 threads
- Precision machined 416 stainless steel
- Black nitride or raw stainless
- This is a muzzle brake, not a flash hider
- Crush washer included inside package
- Made in USA
Important: See the FAQ tab above for more information about muzzle flash on a California featureless rifle.
Note About Colors and Finish
We try our best to accurately represent all colors on our website photos.
On the raw stainless muzzle brakes, there may be some very small dents or imperfections in the machined surface. This is the nature of CNC lathe turning when tiny metal chips get into the sub spindle collet and then are pressed into the part surface when the collet closes. This is rare, but does happen and can appear on the raw stainless parts because they are not sandblasted or coated. See sample image below (keep in mind that this is a closeup photo with high contract lighting so the small blemish can be seen)...
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Excellent aesthetics 
