Rearden Manufacturing Group Llc Mini Muzzle Brake 0.456 1/2-28 Thread Square Shoulder Black

The Rearden Mini Muzzle Brake in 0.456 bore with 1/2-28 thread is a precision-engineered muzzle device built to work seamlessly with modern suppressor systems. Engineered from 17-4 PH H900 stainless steel and finished with black nitride for corrosion resistance and a 67 HRC surface hardness, this brake is purpose-built for shooters running Atlas or Plan B suppressors who want a rock-solid mounting platform. The square-shoulder design ensures your suppressor seats correctly every time, eliminating concentricity issues that can degrade accuracy and increase back pressure.

Compatibility is straightforward: this muzzle brake threads directly onto barrels with a 1/2-28 pitch and works with both Atlas and Atlas XL adapters, as well as Plan B compatible systems. The square-shoulder configuration means you're relying on mechanical indexing rather than thread concentricity alone—a design choice favored by precision shooters. Setup requires attention to detail: torque the muzzle device itself to 15–25 ft-lbs and ensure it seats flush against the barrel shoulder, then clean all threads and tapers before mounting your suppressor to 10 ft-lbs.

This is a no-frills, solid performer for shooters who understand that repeatability matters. If you're running a suppressor system and your barrel already has the correct thread pitch, this brake gives you a clean, repeatable interface. Note that shims are not included, and proper alignment using an alignment rod is essential during installation to avoid binding or poor seating.

Key Features

• 17-4 PH H900 stainless steel construction for durability and corrosion resistance
• Black nitride finish with 67 HRC surface hardness
• Square-shoulder design for positive, repeatable suppressor indexing
• Compatible with Atlas, Atlas XL, and Plan B suppressor systems
• 1/2-28 thread pitch for direct barrel installation

Specifications

Frequently Asked Questions

Will this muzzle brake work with my suppressor?

Yes, if you're running an Atlas, Atlas XL, or Plan B suppressor system. The square-shoulder interface is designed for these platforms. Verify that your barrel has a 1/2-28 thread pitch before ordering.

What thread pitch is this muzzle brake?

This brake has a 1/2-28 thread pitch and a 0.456" bore diameter. It threads directly onto barrels with matching specifications.

Do I need shims for installation?

Shims are not included with this brake. Depending on your barrel and suppressor setup, you may or may not need them—a professional gunsmith can advise on your specific configuration.

How should I install and torque this muzzle brake?

Torque the muzzle device itself to 15–25 ft-lbs and ensure it seats flush against the barrel shoulder. Before mounting your suppressor, clean all threads and tapers thoroughly, then torque the suppressor to 10 ft-lbs. Use an alignment rod during setup to verify the entire system is concentric.