Product Description The KAK Industry Plan B Universal Muzzle Device is engineered for repeatable lockup when used with compatible Plan B suppressor mounts. It features a precision-machined taper followed by threads to help provide consistent alignment and a proper seal between the muzzle device and suppressor adapter. Built from durable 17-4 stainless steel and finished in nitride for enhanced wear and corrosion resistance, it includes milled wrench flats for straightforward installation and is engraved with its thread pitch for quick identification. Product Highlights Plan B compatible taper-and-thread design promotes repeatable lockup and a proper seal with Plan B suppressor adapters 1/2x28 thread pitch and universal bore for broad use across compatible setups 17-4 stainless steel construction with a nitride finish for durability and corrosion resistance Milled 13/16" flats for easier installation and removal Thread pitch engraving helps prevent mix-ups during setup or maintenance Specs Brand: KAK Industry Manufacturer Part Number: 410-2103-001 UPC: 811163036191 Product Type: Plan B universal muzzle device Thread Pitch: 1/2x28 Bore: Universal Material: 17-4 stainless steel Finish: Nitride Overall Length: 1 in Outside Dimension: 0.895 in Wrench Flats: 13/16 in Weight: 1.6 oz Installation Note (manufacturer recommendation): Use Rocksett; torque 20-25 ft-lbs 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.