Product Description The Rearden Plan B Square Muzzle Brake (SPB 0.5) is a precision-engineered muzzle device designed for shooters seeking effective recoil mitigation and enhanced muzzle control. Constructed from durable stainless steel and finished in a sleek black coating, this brake features a distinctive square-body design with generously sized side ports that redirect propellant gases efficiently to reduce muzzle rise and felt recoil. Threaded at 5/8-24, it is compatible with a variety of .450 caliber platforms including .450 Short, .450 Adams, .450 Boxer Mk I, .450 Revolver, .450 Colt, .450 Corto, and .450 Mark III. Its compact, robust construction makes it a reliable addition to any compatible firearm build. Product Highlights Effective Recoil Reduction: Square-body design with large ported vents efficiently redirects muzzle gases to minimize felt recoil and muzzle flip. Durable Stainless Steel Construction: Built from high-quality stainless steel for long-lasting strength and corrosion resistance. Black Finish: Matte black finish provides a tactical appearance while helping to resist wear and environmental exposure. 5/8-24 Thread Compatibility: Standard 5/8-24 threading ensures broad compatibility with .450 caliber barrels across multiple platforms. Compact and Lightweight: Weighing just 0.155 lbs with a compact profile, this muzzle brake adds minimal bulk to your firearm. Specs Brand: Rearden / Rearden Manufacturing Model: Plan B (SPB 0.5) MPN: 10008 UPC: 850035804070 Material: Stainless Steel Finish: Black Thread Type: 5/8-24 Caliber: .450 Short (.450 Adams / .450 Boxer Mk I / .450 Revolver / .450 Colt / .450 Corto / .450 Mark III) Length: 5.3 in Width: 4.1 in Height: 1.3 in Weight: 0.155 lbs Product Type: Muzzle Brake Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>