Turn your AR-15 into a softer-shooting, suppressor-ready workhorse with the Wilson Combat Rapid Thread Muzzle Brake – 5.56 NATO, 1/2x28, Melonite Finish, Black – SP-RTMBFB-556 / SPRTMBFB556 (UPC: 811826023155). Designed for shooters who demand fast follow-up shots, reduced recoil, and seamless suppressor integration, this compact brake is a premium upgrade for any serious 5.56/.223 rifle or carbine.
Purpose-Built for 5.56 NATO / .223 Rem AR Platforms
This Wilson Combat Rapid Thread Muzzle Brake is specifically engineered around the 5.56 NATO / .223 Rem pressure curve and gas volume:
Caliber: 5.56 NATO / .223 Rem
Thread Pitch: 1/2x28, the industry-standard for AR-15 barrels
Ideal for duty carbines, training rifles, competition ARs, and defensive builds
If your AR-15 barrel is threaded 1/2x28, the SP-RTMBFB-556 is a direct, easy-fit upgrade at the muzzle.
Rapid Thread Interface – Suppressor-Ready Design
This isn’t just a muzzle brake; it’s part of Wilson’s Rapid Thread suppressor system:
Serves as the host muzzle device for select Wilson Combat Rapid-Thread compatible suppressors
Allows fast on/off attachment of compatible cans while maintaining solid, repeatable alignment
Eliminates the need to swap muzzle devices every time you want to shoot suppressed
Run it as a brake during normal shooting, then thread on your Rapid Thread suppressor in seconds when it’s time to go quiet.
Significant Recoil & Muzzle Rise Reduction
Even in 5.56, recoil and muzzle climb can cost you time and accuracy in rapid strings. The Rapid Thread Muzzle Brake is designed to:
Reduce felt recoil, making the rifle more comfortable and controllable
Cut muzzle rise, helping you keep the dot or reticle on target for faster follow-up shots
Improve target tracking during rapid fire, transitions, and drills
Whether you’re running drills at the range or competing, this brake helps you shoot faster with more control.
Melonite (Black Nitride) Finish – Built for Hard Use
The Melonite / black nitride finish is tailored for high-use rifles that see real-world conditions:
Provides a tough, corrosion-resistant surface that stands up to moisture, sweat, carbon, and rough handling
Increases surface hardness to resist wear, dings, and erosion at the muzzle
Low-glare matte black appearance blends seamlessly with modern AR uppers and rails
If your rifle lives in the truck, goes to classes, or gets worked hard on the range, this finish helps ensure your brake lasts as long as the rifle.
Includes Shim Kit & O-Ring – Easy, Precise Installation
To get the most out of a muzzle brake, it must be timed correctly. Wilson Combat includes:
This means you can install the brake correctly and securely without guesswork or relying on crush washers alone.
Compact, Clean Profile That Won’t Get in the Way
The Rapid Thread Muzzle Brake is designed to be effective without being bulky:
Compact design keeps added length and weight to a minimum
Clean, functional lines suit both tactical and competition rifles
Works well on everything from 16" carbines to SBRs and piston guns (where legal)
You get serious performance at the muzzle without turning your rifle into a spear.
Ideal For:
The Wilson Combat Rapid Thread Muzzle Brake 5.56 NATO 1/2x28 is an excellent choice for:
AR-15 owners who want better recoil control and muzzle stability
Shooters planning to run a Rapid Thread-compatible Wilson Combat suppressor
3-Gun and carbine competitors who need faster splits and better control
Defensive and duty carbines where a controllable, suppressor-ready setup is preferred
If speed, control, and suppressor compatibility matter to you, this brake checks all the boxes.
Key Specifications – SP-RTMBFB-556 / SPRTMBFB556
Brand: Wilson Combat
Product Name: Rapid Thread Muzzle Brake
Model / MPN: SP-RTMBFB-556
Alt SKU: SPRTMBFB556
UPC: 811826023155
Caliber: 5.56 NATO / .223 Rem
Thread Pitch: 1/2x28
Finish: Melonite (Black Nitride)
Color: Black
Function:
Included: Shim kit and O-ring for proper timing and secure installation
Why Choose the Wilson Combat Rapid Thread Muzzle Brake 5.56 NATO?
Noticeable recoil and muzzle rise reduction for faster, more accurate follow-up shots
Suppressor-ready Rapid Thread interface, so you’re future-proofed for a compatible can
Melonite black nitride finish built for real-world abuse and long-term durability
Includes shims and O-ring right in the box for a professional-quality install
Built by Wilson Combat, a name trusted for premium AR parts and hard-use components
If you want your AR-15 to shoot flatter, stay on target, and be ready for suppressor use, the Wilson Combat Rapid Thread Muzzle Brake, 5.56 NATO, 1/2x28, Melonite, Black – SP-RTMBFB-556 / SPRTMBFB556 (UPC 811826023155) is an outstanding upgrade at the end of your barrel.
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