Kaw Valley Precision Plan B Brake Features The Kaw Valley Precision Plan B Brake is machined from 17-4 stainless steel a material chosen for its strength and resistance to the heat and pressure a muzzle device faces with every shot. Its .500 bore diameter allows it to be used across any caliber up to that bore size making it a versatile option for builders running different chamberings. A square shoulder ensures the brake indexes properly against the barrel keeping the ports oriented correctly for consistent recoil and muzzle rise reduction. At just 1.27 inches overall length the Plan B Brake adds minimal length to a barrel while still providing the venting needed to manage recoil impulse. The brake is finished in black nitride QPQ a corrosion-resistant treatment that also adds surface hardness helping the brake withstand repeated firing without excessive wear. Its M14x1 left hand thread pattern means this brake is intended for barrels cut to that specific reverse thread so shooters should confirm their barrel s thread pattern before ordering. This attention to a specific thread specification reflects Kaw Valley Precision s focus on building muzzle devices that fit precisely rather than generically. This Kaw Valley Precision Plan B Brake is available for sale at GrabAGun for shooters who want a compact durable brake for their left-hand threaded build. Kaw Valley Precision Plan B Brake Specifications Manufacturer: Kaw Valley Precision Model: Plan B Brake Material: 17-4 Stainless Steel Finish: Black Nitride QPQ Overall Length: 1.27 Bore: .500 (Any Caliber) Shoulder: Square Thread Pitch: M14x1 LH Available At: GrabAGun