Rearden Manufacturing Group Llc Mini Muzzle Brake 0.675 3/4-20 Thread Square Shoulder Black

The Rearden Mini Muzzle Brake is a compact, precision-engineered adapter designed to prepare your rifle barrel for suppressor mounting. Built from 17-4 PH stainless steel (H900 condition) with a black nitride finish rated to 67 HRC surface hardness, this 0.675-inch, 3/4-20 threaded brake offers the durability and corrosion resistance serious shooters demand. Whether you're running an Atlas or Atlas XL suppressor, or pairing it with a compatible Plan B adapter, this brake provides a rock-solid foundation for sound signature reduction and recoil management on precision rifles, hunting setups, and tactical platforms.

The square shoulder design ensures positive indexing against your barrel, critical for maintaining the concentricity and alignment your suppressor system requires. The Mini Muzzle Brake's compact profile keeps overall barrel length in check, making it ideal for hunters and shooters who need maneuverability without sacrificing modularity. Rearden's engineering focuses on systems that work together—this brake is optimized for seamless integration with their expanding ecosystem of adapters and suppressors, so you can configure exactly what your mission demands.

Installation matters, and Rearden includes solid guidance: torque the brake to 15–25 ft-lbs, ensure the shoulder sits flush, and always verify alignment with an alignment rod before installing your suppressor. Use the suppressor itself for final torque (10 ft-lbs). This attention to setup discipline rewards you with reliable performance and minimal point-of-aim shift—precision that counts when accuracy is on the line.

Key Features

• Forged from 17-4 PH stainless steel (H900) for strength and durability
• Black nitride finish (67 HRC hardness) resists corrosion and wear
• Square shoulder design locks to barrel for precise concentricity
• Compatible with Atlas and Atlas XL suppressors
• Compatible with Plan B adapter systems
• Compact profile minimizes overall barrel length impact
• Designed for alignment-rod setup and modular suppressor configuration

Specifications

Frequently Asked Questions

Is the Rearden Mini Muzzle Brake compatible with my suppressor?

This brake is designed for use with Rearden Atlas and Atlas XL suppressors, as well as compatible Plan B adapter systems. Always verify your suppressor's adapter compatibility before ordering. Note that use with Q suppressors voids the brake's warranty.

What torque specs should I use for installation?

Torque the muzzle brake itself to 15–25 ft-lbs. Once the brake is seated against the square shoulder, torque your suppressor to 10 ft-lbs. Always use an alignment rod to confirm the system is properly centered before firing.

Do I get shims with this brake?

Shims are not included with the Mini Muzzle Brake. If your setup requires them, order them separately.

What's the difference between the Atlas and Atlas XL adapter overrun?

The Atlas adapter has approximately 0.050 inch of overrun, while the Atlas XL adapter is designed with no overrun. This affects how the suppressor mounts to the brake; choose based on your suppressor model.