{"product_id":"cmmg-ar-15-22-lr-replacement-barrel-collar-kit-16-1in-threaded-1-2-28-black-nitride-22d7c4a","title":"CMMG AR-15 .22 LR Replacement Barrel \u0026 Collar Kit, 16.1in Threaded 1\/2-28 Black Nitride 22D7C4A","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe CMMG Replacement Barrel Kit with Collar is built for shooters who want to assemble a dedicated .22 LR AR-15 upper with proven CMMG compatibility. This 16.1-inch M4-contour barrel is made from durable 4140 chrome moly\/chromoly steel and finished in a black nitride (salt bath nitride) treatment for corrosion resistance. It includes the barrel collar needed to replace the chamber adapter on a .22 AR conversion and to support a dedicated .22 LR bolt carrier group (BCG) build.\u003c\/p\u003e\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePurpose-built replacement barrel kit for dedicated .22 LR AR-15 upper assemblies\u003c\/li\u003e\n  \u003cli\u003eIncludes barrel collar to replace the chamber adapter on .22 AR conversions\u003c\/li\u003e\n  \u003cli\u003e16.1-inch M4 contour with 1:16 twist optimized for .22 Long Rifle\u003c\/li\u003e\n  \u003cli\u003e4140 chrome moly\/chromoly steel construction with black salt bath nitride finish\u003c\/li\u003e\n  \u003cli\u003eThreaded 1\/2\"-28 muzzle for common rimfire muzzle devices and suppressor mounts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e CMMG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 22D7C4A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 815835014944\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e .22 Long Rifle (.22 LR)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 16.1 in (16.10 in stated)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 4140 Chrome Moly\/Chromoly Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Nitride \/ Black Salt Bath Nitride\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwist Rate:\u003c\/strong\u003e 1:16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Contour:\u003c\/strong\u003e M4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuzzle Threads:\u003c\/strong\u003e 1\/2\"-28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Block Diameter \/ Journal:\u003c\/strong\u003e 0.750 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e AR-15 (dedicated .22 LR upper build)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Barrel collar\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChrome Lined:\u003c\/strong\u003e No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShipping Weight (approx.):\u003c\/strong\u003e 1.96 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eDisclaimer: 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.\u003c\/em\u003e\u003c\/p\u003e","brand":"CMMG","offers":[{"title":"Default Title","offer_id":44077087686778,"sku":"FLX-158962","price":233.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/283695110.png?v=1767633995","url":"https:\/\/tlooutdoors.com\/products\/cmmg-ar-15-22-lr-replacement-barrel-collar-kit-16-1in-threaded-1-2-28-black-nitride-22d7c4a","provider":"TLO Outdoors","version":"1.0","type":"link"}