The Rearden 10138 PRS 0.375 5/8-24 Square Plan B muzzle brake is a purpose-built single-port device designed to work seamlessly with Atlas, Atlas XL, and Plan B mount interfaces. Machined from durable 17-4 PH H900 stainless steel and finished in black nitride, it offers a compact profile that adds minimal length while helping manage recoil and blast on .375 caliber setups.

This model uses a 5/8x24 thread pattern with a .375 bore, making it a strong option for rifles that need a suppressor-ready brake that can double as a sacrificial blast baffle. Its square-shoulder design supports secure mounting and consistent alignment, ideal for range work, training, or precision-focused shooting where control and repeatability matter. Rearden is known for clean machining, thoughtful interface design, and robust finishes that stand up to hard use.

Key Features:

• Manufacturer: Rearden
• Model: PRS
• Caliber: 0.375
• Thread Pattern: 5/8x24
• Length: 2.25"
• Weight: 3.28 oz
• Material: 17-4 PH H900 Stainless Steel
• Finish Color: Black Nitride
• Mount Type: Atlas, Atlas XL, Plan B