Rearden Manufacturing Group Llc Mini Muzzle Brake 0.571 5/8-24 Thread Taper Shoulder Black

The Rearden Mini Muzzle Brake in 0.571" diameter with 5/8-24 thread and taper shoulder is a compact muzzle device designed for shooters running suppressor-forward setups on modern rifle platforms. Built from 17-4 PH stainless steel in the H900 condition, this brake provides the mechanical interface your suppressor needs while maintaining a low-profile footprint—ideal for hunters, precision rifle shooters, and tactical competitors who prioritize maneuverability without sacrificing functionality.

This muzzle brake is specifically engineered for compatibility with Rearden's Atlas and Atlas XL suppressor platforms, as well as the Plan B adapter system. The taper shoulder design ensures solid alignment and a repeatable lock-up when torqued and set with threadlocker. The black nitride finish offers proven durability and corrosion resistance, with a hardness rating of 67 HRC on the surface—tough enough for field use and regular cleaning.

Installation is straightforward: clean all mating surfaces, torque the brake to the barrel at 15–25 ft lbs, and ensure it sits square against the shoulder. When you're ready to mount your suppressor, clean the threads and taper, then torque the can to 10 ft lbs and verify alignment using an alignment rod. This brake works as a dedicated mounting platform—not a traditional recoil-reduction brake—so your suppressor does the sound and recoil work while this device handles indexing and stability.

A no-frills, purpose-built solution for shooters who demand compatibility and precision over flash or venting features.

Key Features

• 17-4 PH H900 stainless steel construction for strength and durability
• Compatible with Atlas, Atlas XL, and Plan B suppressor adapter systems
• Taper shoulder design ensures repeatable alignment and lock-up
• Black nitride finish with 67 HRC surface hardness for corrosion and wear resistance
• Compact mini profile minimizes length while providing solid suppressor interface
• Threadlocker-ready for secure, long-term installation

Specifications

Frequently Asked Questions

What suppressors does this Rearden muzzle brake work with?

This brake is designed as the mounting interface for Rearden Atlas and Atlas XL suppressors, as well as the Plan B adapter system. It provides the taper shoulder and thread platform those systems require for alignment and secure mounting.

Is shim selection needed for this brake?

Shims are not included with this brake. Setup relies on torquing the brake square to the shoulder and using an alignment rod to verify that your suppressor seats correctly on the taper.

What's the right way to install this on my rifle?

Clean all surfaces on the muzzle and brake, then torque the brake to your barrel at 15–25 ft lbs and use threadlocker (rockset) to secure it. Ensure the brake sits flush against the shoulder. When mounting your suppressor, clean the taper and threads, torque the can to 10 ft lbs, and check alignment with an alignment rod.

Will this brake reduce recoil or flash on my rifle?

This is a mounting brake, not a recoil-reduction or flash-hider brake. Its primary role is to provide a repeatable, indexed platform for your Rearden suppressor. Recoil and sound reduction come from the suppressor itself.