The Rearden 10010 SPB (Heat Treat) 0.375 1/2x28 Square Plan B Muzzle Brake is a compact, single-port brake engineered for shooters who want effective recoil control in a suppressor-ready package. Machined from 17-4 PH stainless steel with a heat-treated gold finish, it features a .375 bore and 1/2x28 threads, and is designed to interface seamlessly with Atlas, Atlas XL, and Plan B–style suppressor mounts.

This model is well suited for range use, training, and general rifle shooting where faster follow-up shots and better muzzle stability are desired. Its .375 bore and 1/2x28 thread pitch make it appropriate for a wide range of compatible rifle calibers when properly matched to the host barrel and suppressor system. Rearden is known for precise machining and thoughtful design, delivering dependable performance in a compact muzzle device.

Key Features:

• Manufacturer: Rearden
• Model: SPB
• Type: Muzzle Brake
• Bore Size: .375
• Thread Pitch: 1/2x28
• Compatibility: Atlas, Atlas XL, Plan B
• Material: 17-4 PH Stainless Steel
• Finish: Heat Treat