Rearden Manufacturing Group Llc Mini Muzzle Brake 0.571 5/8X32 Thread Square Shoulder Black

The Rearden Mini Muzzle Brake in 0.571" 5/8×32 thread is a precision-engineered muzzle device built for shooters running suppressor-compatible platforms. This square-shoulder brake is manufactured from 17-4 PH stainless steel in the H900 heat-treat condition and finished with black nitride coating, delivering exceptional durability in the field. It's designed to work as a standalone muzzle brake or as a quick-disconnect mount interface for compatible suppressor systems—particularly the Atlas and Atlas XL lines, as well as the Plan B adapter platform.

Built tough for serious shooters, this brake features a hardened black nitride surface (67 HRC) that resists corrosion and wear. The square-shoulder design ensures repeatable alignment when mounting a suppressor, critical for accuracy and consistent point-of-impact. Whether you're setting up a precision rifle, a dedicated range gun, or a hunting rig, this muzzle device gives you a clean, modular foundation for sound and recoil management.

Installation is straightforward: torque the brake to 15–25 ft-lbs to the barrel, ensure it seats square against the shoulder, and use an alignment rod to verify concentricity. When mounting a suppressor, clean the threads and tapers, then torque the can to 10 ft-lbs. Shims are not included; use them only if needed for indexing or alignment.

Key Features

• Compatible with Atlas, Atlas XL, and Plan B suppressor adapter systems
• 17-4 PH H900 stainless steel construction for superior strength and corrosion resistance
• Black nitride finish rated 67 HRC surface hardness for durability and reduced glare
• Square-shoulder design for repeatable, aligned suppressor mounting
• Modular quick-disconnect interface for fast suppressor attachment and removal

Specifications

Frequently Asked Questions

What suppressors work with this muzzle brake?

This brake is compatible with the Rearden Atlas and Atlas XL suppressors, as well as systems using the Plan B adapter. It serves as a quick-disconnect interface for these platforms. Always verify compatibility with your specific suppressor or adapter before purchase.

What thread pitch is this brake?

The brake is 5/8×32 thread, a common pitch for modern rifle barrels. Confirm your barrel's thread specification before ordering to ensure fit.

How do I install and align this muzzle brake?

Torque the brake to your barrel at 15–25 ft-lbs, then use an alignment rod to confirm the brake seats square against the barrel shoulder. When mounting a suppressor, clean all threads and tapers, then torque the suppressor to approximately 10 ft-lbs. Ensure alignment before firing.

Are shims included?

Shims are not included with this brake. Use them only if needed for proper indexing or alignment during installation.