{"product_id":"rosco-manufacturing-melonite-bolt-carrier-group-for-5-56-nato-300-blackout-ar-15-ros-bcg-001","title":"Rosco Manufacturing Melonite Bolt Carrier Group for 5.56 NATO \u0026 .300 Blackout AR-15 ROS-BCG-001","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe Rosco Manufacturing Melonite Bolt Carrier Group is built to MIL-spec standards for modern AR-style carbines chambered in 5.56 NATO \/ 5.56x45mm and .300 AAC Blackout. Designed with input from both consumers and military end users, this full-auto-rated BCG features a durable Melonite finish for enhanced wear resistance and corrosion protection. It includes a properly staked gas key and a matched, shot-peened bolt that is proof-tested and magnetic-particle inspected to support reliable lockup and consistent accuracy, especially when paired with Rosco barrel extensions.\u003c\/p\u003e\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMelonite-coated bolt carrier group for improved wear resistance and corrosion protection\u003c\/li\u003e\n  \u003cli\u003eMIL-spec construction with a properly staked gas key for dependable cycling\u003c\/li\u003e\n  \u003cli\u003eFull-auto rated design intended for demanding training, duty, and hard-use conditions\u003c\/li\u003e\n  \u003cli\u003eMatched bolt is shot-peened and MPI\/HPT tested to enhance strength and service life\u003c\/li\u003e\n  \u003cli\u003eUpgraded extractor and quality component steels support consistent extraction and ejection\u003c\/li\u003e\n\u003c\/ul\u003e\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\u003eProduct Type:\u003c\/strong\u003e Bolt Carrier Group (BCG)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e 5.56 NATO \/ 5.56x45mm and .300 AAC Blackout (AR-15 platform)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Coating:\u003c\/strong\u003e Melonite (Black)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarrier Material:\u003c\/strong\u003e 8620 steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBolt Material:\u003c\/strong\u003e 9310 steel; properly heat treated; shot-peened; MPI\/HPT tested\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Key:\u003c\/strong\u003e 4130 steel; Grade 8 hardware; properly staked\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCam Pin:\u003c\/strong\u003e Hardened 4340\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFiring Pin:\u003c\/strong\u003e 8740 steel; Mil-Spec; centerless ground; hard chrome coated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtractor:\u003c\/strong\u003e 4340 steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEjector:\u003c\/strong\u003e S7 tool steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e ROS-BCG-001\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 181969500821\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ci\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\/i\u003e\u003c\/p\u003e","brand":"Rosco Manufacturing","offers":[{"title":"Default Title","offer_id":44076970180730,"sku":"FLX-ROS-BCG-001","price":161.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/283690236.jpg?v=1767586567","url":"https:\/\/tlooutdoors.com\/products\/rosco-manufacturing-melonite-bolt-carrier-group-for-5-56-nato-300-blackout-ar-15-ros-bcg-001","provider":"TLO Outdoors","version":"1.0","type":"link"}