The Rearden RPB 0.375 5/8-24 Square Plan B Muzzle Brake is a compact, precision-machined device built around the Plan B mounting ecosystem. Machined from 17-4 PH H900 stainless steel and finished in black nitride, it offers a durable, corrosion-resistant interface for Atlas, Atlas XL, and other Plan B style suppressor mounts while maintaining a sleek, low-profile footprint at the muzzle.

This .375 bore, 5/8x24 threaded model is ideal for shooters who want a single-port brake that also serves as a suppressor host on square-shoulder barrels. Its design helps manage recoil while providing a secure, repeatable mounting surface for compatible suppressors, making it well suited for range use, training, and general-purpose rifle setups. Rearden is known for careful machining, thoughtful design, and consistent quality across its mounting accessories.

Key Features:

• Manufacturer: Rearden
• Model: RPB
• Caliber: .375
• Thread Pitch: 5/8x24
• Type: Muzzle Brake
• Material: 17-4 PH H900 Stainless Steel
• Finish Color: Black Nitride
• Length: 1.74 inches
• Weight: 1.71 oz
• Compatibility: Atlas, Atlas XL, Plan B style mounts