The Rearden 10011 SPB(HT)0.375 5/8-24 Square Plan B muzzle brake is built for shooters who want a compact, threaded device that pairs cleanly with modern suppressor mounts. Machined from durable 17-4 PH H900 stainless steel and finished in a heat-treated gold tone, it offers a sleek profile with generous side ports to help manage recoil and muzzle movement.

This SPB model uses 5/8x24 threads with a .375 bore, making it suitable for compatible barrels and Plan B, Atlas, and Atlas XL style mounting systems. Its short overall length and square shoulder interface make it a strong option for range use, training, or general-purpose rifles where you want a solid host for a compatible suppressor. Rearden is known for precise machining and thoughtful design that focuses on reliability and repeatable alignment.

Key Features:

• Manufacturer: Rearden
• Model: SPB
• Type: Muzzle Brake
• Thread Pitch: 5/8x24
• Bore Size: .375
• Compatibility: Atlas, Atlas XL, Plan B mounts
• Finish/Color: Heat treated gold