{"product_id":"cmmg-ar-15-mk4-22-lr-16-1-replacement-barrel-kit-black-nitride","title":"CMMG AR-15\/Mk4 .22 LR 16.1\" Replacement Barrel Kit - Black Nitride","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eCMMG Replacement Barrel Kit\u003c\/strong\u003e\u003c\/span\u003e provides the barrel and collar needed for a \u003cstrong\u003ededicated .22 LR AR-15 upper\u003c\/strong\u003e. Built for the \u003cstrong\u003eAR-15\/CMMG Mk4 platform\u003c\/strong\u003e, the included collar replaces the chamber adapter used with a CMMG .22 AR conversion.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis kit centers on a \u003cstrong\u003e16.1\" M4-contour barrel\u003c\/strong\u003e chambered in a \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003e.22 LR\u003c\/strong\u003e\u003c\/span\u003e sporting chamber. Its \u003cstrong\u003e4140 chrome-moly steel\u003c\/strong\u003e construction receives a \u003cstrong\u003eblack salt-bath-nitride finish\u003c\/strong\u003e inside and out.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe barrel uses a \u003cstrong\u003e1:16 twist\u003c\/strong\u003e, \u003cstrong\u003e1\/2x28\u003c\/strong\u003e muzzle threads, and a \u003cstrong\u003e.750\" carbine-length journal\u003c\/strong\u003e for dedicated rimfire upper assembly.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eIncluded are \u003cstrong\u003eone 16.1\" barrel\u003c\/strong\u003e and \u003cstrong\u003eone barrel collar\u003c\/strong\u003e. This is a \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eNew\u003c\/strong\u003e\u003c\/span\u003e component kit.\u003c\/span\u003e\u003c\/p\u003e","brand":"CMMG","offers":[{"title":"Default Title","offer_id":54988435095874,"sku":"158962","price":210.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_250890d7-20d6-4784-8335-78b0d7161965.png?v=1784135501","url":"https:\/\/centerfiresystems.com\/products\/cmmg-ar-15-mk4-22-lr-16-1-replacement-barrel-kit-black-nitride","provider":"Centerfire Systems","version":"1.0","type":"link"}