{"product_id":"cmmg-resolute-mk4-338-arc-upper-assembly-16-1in-black-nitride-barrel-black-armor-34b440fab","title":"CMMG Resolute Mk4 338 ARC Upper Assembly 16.1in Black Nitride Barrel, Black Armor 34B440FAB","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe CMMG Resolute Mk4 in 338 ARC is built to blend AR-15 platform handling with large bore performance, delivering strong energy on target in both suppressed and unsuppressed setups with reduced gas system tuning compared to similar cartridges. This upper assembly features a 16.1 inch black nitride barrel with a 1:8 twist optimized for traditional .338 caliber projectiles, plus a Black Armor Cerakote finished aluminum receiver for durability and corrosion resistance. To maximize parts compatibility, the 338 ARC design uses the same bolt as 6.5 Grendel AR-15 systems, making it a smart option for shooters who want versatility without overcomplicating their build.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e338 ARC upper designed for AR-15 style platforms, balancing power with versatile suppressed and unsuppressed performance\u003c\/li\u003e\n  \u003cli\u003e16.1 inch black nitride barrel with 1:8 twist to stabilize a wide range of .338 caliber projectiles\u003c\/li\u003e\n  \u003cli\u003eCarbine length gas system for reliable cycling and common parts compatibility\u003c\/li\u003e\n  \u003cli\u003e5\/8x24 threaded muzzle with CMMG Zeroed Muzzle Brake included\u003c\/li\u003e\n  \u003cli\u003e15 inch M-LOK handguard (EML 15) provides lightweight rigidity and ample mounting space\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\u003eManufacturer Part Number:\u003c\/strong\u003e 34B440FAB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 840442506483\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlatform Compatibility:\u003c\/strong\u003e AR-15 \/ AR style\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 338 ARC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 16.1 in (16.10 in)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Finish:\u003c\/strong\u003e Black Nitride\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwist Rate:\u003c\/strong\u003e 1:8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas System Length:\u003c\/strong\u003e Carbine Length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuzzle Threads:\u003c\/strong\u003e 5\/8x24\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuzzle Device:\u003c\/strong\u003e CMMG Zeroed Muzzle Brake\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReceiver Material:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReceiver Finish:\u003c\/strong\u003e Black Armor Cerakote\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandguard:\u003c\/strong\u003e EML 15, M-LOK\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandguard Length:\u003c\/strong\u003e 15 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 25.5 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.10 lbs\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 products manufacturer.\u003c\/em\u003e\u003c\/p\u003e","brand":"CMMG","offers":[{"title":"Default Title","offer_id":44098681208954,"sku":"FLX-182970","price":862.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/285919603.png?v=1771079692","url":"https:\/\/tlooutdoors.com\/products\/cmmg-resolute-mk4-338-arc-upper-assembly-16-1in-black-nitride-barrel-black-armor-34b440fab","provider":"TLO Outdoors","version":"1.0","type":"link"}