Rearden Manufacturing Group Llc Dpb Muzzle Brake 0.29 5/8-24 Threads Square Shoulder Black

The Rearden DPB muzzle brake is a precision-engineered attachment designed for shooters running suppressor-ready setups with Plan B type mounts. Built from 17-4 PH H900 stainless steel and finished in black nitride, this brake offers both durability and a tighter bore seal—critical for maintaining accuracy when running a can. The 5/8-24 threaded design with square shoulder mounting means you're getting a repeatable, indexable platform that pairs directly with Rearden's Atlas and Atlas XL suppressors and adapters.

This is the updated version with enlarged wrench flats on the rear, making installation and removal easier in the field or at the bench. Rearden designed the DPB to handle the demands of long-range rifle work and precision shooting where suppressor-system alignment matters. The black nitride finish (67 HRC surface hardness) resists corrosion and wear, and shims are included to help dial in perfect alignment when you thread on your suppressor. Proper installation—cleaning all mating surfaces, torquing to spec, and using an alignment rod to verify concentricity—is essential to get the most from your suppressor system.

Whether you're building a precision rifle, a hunting setup, or a dedicated range gun, the DPB gives you a solid, repeatable interface between your barrel and suppressor. It's purpose-built for shooters who demand accuracy and consistency from their sound mitigation system.

Key Features

• Plan B type mount compatible with Rearden Atlas and Atlas XL suppressors and adapters
• 17-4 PH H900 stainless steel construction for strength and longevity
• Black nitride finish with 67 HRC surface hardness for corrosion resistance
• Enlarged wrench flats on rear for easier installation and removal
• Square shoulder design ensures repeatable, indexed mounting
• Shims included for system alignment verification

Specifications

Frequently Asked Questions

Is this brake compatible with Plan B suppressors?

Yes. The DPB is designed as a Plan B type mount and is compatible with Rearden Atlas and Atlas XL suppressors and adapters. Always verify that your suppressor system is designed to work with Plan B mounts before installation.

What thread size does this brake have?

The DPB features 5/8-24 threads with a square shoulder design for direct mounting to rifle barrels threaded to this specification.

What's included with the DPB?

The brake comes with shims to aid in system alignment and verification. Proper alignment is critical when installing your suppressor, so use these shims and an alignment rod to ensure concentricity across the entire mounting system.

How should I install this muzzle brake?

Clean all mating surfaces thoroughly, torque the brake to your barrel at approximately 30 ft-lbs, and Rockset the connection. When mounting your suppressor, torque it to approximately 10 ft-lbs and verify alignment with an alignment rod. The square shoulder design ensures the brake seats consistently with your barrel shoulder.