{"product_id":"cmmg-mk4-ar15-upper-receiver-assembly-armor-black-cerakote-finish-cmm55ba290ab","title":"CMMG Mk4\/AR15 Upper Receiver Assembly, Armor Black, Cerakote Finish CMM55BA290AB","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe CMMG Mk4\/AR15 Upper Receiver Assembly in Armor Black is expertly crafted from aircraft-grade Billet 6061 T6 Aluminum and finished with a durable Cerakote Standard coating. This upper receiver comes with CMMG's ZEROED Polymer Dust Cover pre-installed and omits the forward assist, giving your AR15 build a sleek and streamlined aesthetic. An enlarged ejection port expands compatibility to a variety of pistol calibers, including 9mm, 10mm, .40 S\u0026amp;W, and .45 ACP, making it an ideal foundation for PCC builds as well. Compatible with CMMG MkG, MkGs, Mk10, Mk9, and Mk17 lower receivers, this upper offers versatile build options backed by CMMG's Lifetime Quality Guarantee against material and workmanship defects.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eConstructed from Billet 6061 T6 Aluminum for a lightweight yet rugged upper receiver platform\u003c\/li\u003e\n  \u003cli\u003eCerakote Standard Armor Black finish delivers outstanding corrosion, wear, and impact resistance\u003c\/li\u003e\n  \u003cli\u003eCMMG ZEROED Polymer Dust Cover comes pre-installed for immediate, ready-to-build use\u003c\/li\u003e\n  \u003cli\u003eEnlarged ejection port enables pistol caliber compatibility with 9mm, 10mm, .40 S\u0026amp;W, and .45 ACP\u003c\/li\u003e\n  \u003cli\u003eCompatible with CMMG MkG, MkGs, Mk10, Mk9, and Mk17 lower receivers; backed by CMMG's Lifetime Quality Guarantee\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003ePlatform:\u003c\/strong\u003e Mk4 \/ AR15\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUpper Receiver Material:\u003c\/strong\u003e Billet 6061 T6 Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Cerakote Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Armor Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e CMM55BA290AB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 810097506329\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Lower Receivers:\u003c\/strong\u003e CMMG MkG, MkGs, Mk10, Mk9, Mk17\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Not compatible with CMMG fixed ejector Radial Delayed Blowback BCGs\u003c\/li\u003e\n\u003c\/ul\u003e\n\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":44199579123834,"sku":"FLX-CMM55BA290AB","price":156.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/308989534.jpg?v=1788356071","url":"https:\/\/tlooutdoors.com\/products\/cmmg-mk4-ar15-upper-receiver-assembly-armor-black-cerakote-finish-cmm55ba290ab","provider":"TLO Outdoors","version":"1.0","type":"link"}