BELLOWS, 1/2-28 Plan B 17-4 SS Radial Brake
PRE-ORDER NOTICE: This is a pre-order item for black DLC only. Our initial production run is currently in manufacturing and is scheduled to begin shipping on or before October 30, 2026. Payment will be processed at checkout to secure your unit from this first production run.
Engineered Displacement.
Machined from premium, American-sourced 17-4 PH Stainless Steel, the Bellows Series Radial Brake is built for extreme durability under harsh, high-heat use. Utilizes precision-drilled 0.0625" diameter ports to displace, compress, and redirect explosive blast gases, reducing muzzle rise and recoil.
Engraved with the ISA logo on the side, the Bellows Series features a seamless Plan B compatible taper mount design and an optimized 9mm bore, making it also compatible with .223/5.56mm. It delivers maximum recoil management and structural integrity whether run as a standalone muzzle device or as a rock-solid suppressor host.
Technical Specifications:
- Weight: 2.5 oz (component only)
- Thread Pitch: 1/2-28 TPI
- Bore Diameter: 9mm (compatible with 9mm, 5.56/.223, and smaller calibers)
- Mount Compatibility: Q Plan B & Rearden compatible taper mount system
- Port Configuration: 0.0625" radial gas displacement ports
- Material: 17-4 PH Stainless Steel (H900 Heat Treat / 40-45 HRC)
- Tool Interface: Standard 13/16" integrated wrench flats for easy installation and removal
- Origin: Proudly engineered and machined in the USA
*Forward protrusion past front taper, 0.840"
Available Finishes:
- DLC Black (Pre-Order): Our flagship Diamond-Like Carbon coating. Delivers extreme surface hardness, slickness, and maximum resistance to harsh carbon buildup. Harder and slicker than Black Nitride.
- PVD Bronze (Coming Soon): A premium, copper-toned Physical Vapor Deposition finish. Engineered for distinct custom styling and high-temperature thermal durability.
- Bead Blasted (Coming Soon): A raw, matte-gray industrial finish.
SHIPPING RESTRICTION (CALIFORNIA): Due to strict compliance regulations under California Assembly Bill 1263 (AB-1263) regarding identity verification and delivery restrictions for firearm accessories, we do not accept orders for or ship this product to California addresses. Any orders placed with a California shipping address will be automatically blocked or canceled at checkout. We apologize for any inconvenience.
