{"product_id":"cmmg-resolute-mk4-22-arc-complete-upper-receiver-16-1-in-barrel-15-in-m-lok-handguard-28b260cab","title":"CMMG Resolute MK4 .22 ARC Complete Upper Receiver 16.1 in Barrel 15 in M-LOK Handguard 28B260CAB","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\u003cp\u003eThe CMMG Resolute MK4 Complete Upper Receiver in .22 ARC is built to deliver reliable performance from the AR-15 platform while taking advantage of the fast, high-performance .22 ARC cartridge. This upper features a 16.10-inch 4140 steel barrel paired with a 15-inch M-LOK handguard for accessory flexibility, improved handling, and a streamlined profile. Its 7075-T6 aluminum construction helps provide strength without unnecessary weight, making it a solid choice for shooters looking for a modern, modular upper assembly for range use, target shooting, or general-purpose AR builds.\u003c\/p\u003e\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eChambered in .22 ARC for high-velocity performance in the CMMG Mk4 AR-15 platform.\u003c\/li\u003e\n\u003cli\u003e16.10-inch 4140 steel barrel with a 1:7 twist rate to support modern projectile performance.\u003c\/li\u003e\n\u003cli\u003e15-inch M-LOK handguard offers modular accessory mounting and a clean, lightweight setup.\u003c\/li\u003e\n\u003cli\u003eConstructed with durable 7075-T6 aluminum for a strong and dependable upper assembly.\u003c\/li\u003e\n\u003cli\u003eComplete upper receiver configuration from CMMG for shooters building or upgrading an AR-15 platform rifle.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecs\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e CMMG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Resolute MK4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Complete Upper Receiver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e .22 ARC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 16.10 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Material:\u003c\/strong\u003e 4140 Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Profile:\u003c\/strong\u003e Mid Weight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwist Rate:\u003c\/strong\u003e 1:7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandguard Length:\u003c\/strong\u003e 15 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandguard Type:\u003c\/strong\u003e M-LOK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReceiver\/Construction Material:\u003c\/strong\u003e 7075-T6 Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlatform:\u003c\/strong\u003e AR-15 \/ Mk4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 28B260CAB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 810148627324\u003c\/li\u003e\n\u003c\/ul\u003e\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":44199349944442,"sku":"FLX-164458","price":862.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/9a1fcf561839e60edeb7ec54f03656df.png?v=1788276478","url":"https:\/\/tlooutdoors.com\/products\/cmmg-resolute-mk4-22-arc-complete-upper-receiver-16-1-in-barrel-15-in-m-lok-handguard-28b260cab","provider":"TLO Outdoors","version":"1.0","type":"link"}