Rearden Rpb Mb .280 1/2-28 Nitride

The Rearden RPB muzzle brake in .280 caliber with 1/2-28 threads and nitride finish is a precision recoil management tool built for shooters running Plan B-compatible suppressor mounting systems. This muzzle device threads directly onto your barrel and accepts Plan B type silencer mounts, making it the anchor point for a modular suppressor setup. The nitride finish provides a durable, corrosion-resistant surface and contributes to a tighter seal when your suppressor is mounted—critical for consistent performance and longevity of the whole system.

Engineered from 17-4 PH H900 stainless steel, the RPB is compatible with both Atlas and Atlas XL suppressors. The design accounts for mounting variations: the standard configuration includes Atlas compatibility with approximately 1.050" of overrun, while an Atlas XL adapter option is available with no overrun. Nitride shims are included to dial in the perfect fit for your specific suppressor stack. Proper installation—torquing to spec and using an alignment rod—ensures the system runs square and tight, which is essential for accurate shooting and quiet operation.

This is not a standalone brake for bare-muzzle shooting; it's purpose-built as the interface between your .280 barrel and a suppressed setup. If you're building a modular can system around Plan B mounts, the RPB gives you the rock-solid platform your precision rifle deserves. Always follow installation best practices: clean all threads and tapers, apply threadlocker, torque correctly, and verify alignment before mounting your suppressor.

Key Features

• 17-4 PH H900 stainless steel construction for strength and corrosion resistance
• Nitride finish for durability and enhanced sealing properties
• .280 caliber with 1/2-28 thread pitch
• Plan B mount compatibility for modular suppressor systems
• Atlas and Atlas XL suppressor compatible
• Nitride shims included for system optimization

Specifications

Frequently Asked Questions

Is the Rearden RPB compatible with my Plan B suppressor mount?

Yes, the RPB is designed specifically for Plan B type mounts. Verify that your suppressor or mounting system is Plan B-compatible before purchasing. The brake serves as the threaded interface between your barrel and the Plan B mount.

What do I need to know about installation and alignment?

Use an alignment rod during setup to ensure the entire system is properly aligned. Clean all threads and tapers thoroughly, apply threadlocker (rockset) to the brake's barrel threads, torque to approximately 30 ft-lbs, and verify the brake sits square against the barrel shoulder. When mounting your suppressor, torque to approximately 10 ft-lbs and confirm alignment again.

Why does nitride finish matter on a muzzle brake?

The nitride finish creates a tighter seal between the brake and your suppressor, which improves suppressor performance and longevity. Because of this, proper torque and threadlocker application are especially important—improper installation can compromise that seal.

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

The standard Atlas configuration includes approximately 1.050" of overrun (the brake extends past the suppressor when mounted). The Atlas XL adapter option provides no overrun, sitting flush. Choose based on your suppressor model and desired system length.