{"product_id":"rosco-manufacturing-ar-15-bolt-carrier-group-5-56-300-blk-black-phosphate-full-auto-ros-bcg-002","title":"Rosco Manufacturing AR-15 Bolt Carrier Group 5.56\/300 BLK Black Phosphate Full-Auto ROS-BCG-002","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe Rosco Manufacturing ROS-BCG-002 Bolt Carrier Group is a complete, mil-spec BCG engineered for AR-15 rifles chambered in 5.56 NATO, .223 Remington, and .300 AAC Blackout. Featuring a tough Black Phosphate finish, a chrome-lined gas key and bolt channel, and a properly staked gas key fastened with Grade 8 hardware, this BCG is built to perform under the most demanding conditions. The carrier is machined from 8620 steel while the bolt is manufactured from C158 steel and subjected to both magnetic particle inspection (MPI) and high-pressure testing (HPT), ensuring every unit meets rigorous quality standards. Full-Auto rated and shot-peened throughout, this BCG delivers consistent lockup and reliable function whether you are a civilian shooter or a military end user. Rosco Manufacturing balances direct input from military users and everyday carbine shooters to produce components that exceed expectations every time.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eFull-Auto rated complete Bolt Carrier Group compatible with 5.56 NATO, .223 Remington, and .300 AAC Blackout AR-15 platforms\u003c\/li\u003e\n  \u003cli\u003e8620 steel carrier with durable Black Phosphate coating and chrome-lined gas key and bolt channel for long-term performance\u003c\/li\u003e\n  \u003cli\u003eGas key manufactured from 4130 steel, attached with Grade 8 hardware, and properly staked to mil-spec standards\u003c\/li\u003e\n  \u003cli\u003eC158 steel bolt is shot-peened, MPI\/HPT tested, and matched to the barrel for consistent accuracy and dependable lockup\u003c\/li\u003e\n  \u003cli\u003eHard chrome coated mil-spec firing pin, hardened 4340 steel cam pin, and upgraded extractor for maximum reliability\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 Rosco Manufacturing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e ROS-BCG-002\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 181969500838\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 5.56 NATO, .223 Remington, .300 AAC Blackout\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Phosphate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarrier Material:\u003c\/strong\u003e 8620 Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Key:\u003c\/strong\u003e 4130 Steel, Attached with Grade 8 Hardware, Properly Staked\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCam Pin:\u003c\/strong\u003e Hardened 4340 Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFiring Pin:\u003c\/strong\u003e 8740 Steel, Heat-Treated, Mil-Spec, Centerless Ground, Hard Chrome Coated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBolt Material:\u003c\/strong\u003e C158 Steel, Phosphate Coated, MPI\/HPT Tested\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtractor:\u003c\/strong\u003e 4140 Steel, Heat Treated, Shot Peened\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEjector:\u003c\/strong\u003e S2-S7 Tool Steel, Shot Peened\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRating:\u003c\/strong\u003e Full-Auto Rated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible With:\u003c\/strong\u003e AR-15 Upper Receivers and Rifles chambered in 5.56\/.223\/.300 BLK\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":"ROSCO MANUFACTURING","offers":[{"title":"Default Title","offer_id":44199814496378,"sku":"FLX-179514","price":202.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/308989031.png?v=1788380086","url":"https:\/\/tlooutdoors.com\/products\/rosco-manufacturing-ar-15-bolt-carrier-group-5-56-300-blk-black-phosphate-full-auto-ros-bcg-002","provider":"TLO Outdoors","version":"1.0","type":"link"}