--- title: "Rosco Manufacturing Black BCG 5.56/.300 BLK AR-15" description: "Black Melonite bolt carrier group for AR-15 platforms chambered in 5.56 or .300 BLK. Features a staked gas key, MP-tested bolt, and upgraded extractor." canonical_url: "https://www.kygunco.com/product/rosco-manufacturing-bolt-carrier-group-5.56-300-blk-fits-ar-15-black" meta: author: KYGUNCO "og:description": "Black Melonite bolt carrier group for AR-15 platforms chambered in 5.56 or .300 BLK. Features a staked gas key, MP-tested bolt, and upgraded extractor." "og:image": "https://cdn.kygunco.com/assets/products/272454/thumbnail.jpg?v=1733338239" "og:image:height": "500" "og:image:width": "500" "og:title": "Rosco Manufacturing Black BCG 5.56/.300 BLK AR-15" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Shooting](https://www.kygunco.com/category/shooting) / [Gun Parts](https://www.kygunco.com/category/shooting/gun-parts) / [Handgun & Rifle Parts](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts) / [Rifle Parts](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts) / [Bolt Carrier Group](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts/bolt-carrier-group) / RSC-ROS-BCG-001 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/272454/main.jpg?v=1733338239) For illustration purposes only, this image may not be an exact representation of the product. # ROSCO MANUFACTURING Bolt Carrier Group 5.56/300 Blk fits AR-15 Black The Rosco Manufacturing bolt carrier group is designed for AR-15 platforms chambered in 5.56 or .300 BLK. It features a black Melonite coating, properly staked gas key, shot-peened and MP-tested matched bolt, and upgraded extractor. The BCG is rated for full-auto fire. $153.99 ** 5 interest-free payments of **$30.80** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** Online In Store ** Flat Rate $13.94 for every 25 lbs. Shipping to HI & AK may incur additional fees. ** Ships To Your Home Handled by our expert shippers in Bardstown, KY. Item # 272454 Style RSC-ROS-BCG-001 UPC 181969500821 Condition New Manufacturer [Rosco Manufacturing](https://www.kygunco.com/brand/rosco-manufacturing) Weight 3 lb The Rosco Melonited Bolt Carrier Groups are designed to meet the modern-day carbine shooters requirements. They have also balanced input from their consumers and military end users in order to bring you the product you need, not just the one they want to sell you. All Rosco BCG's are to MIL Specification and have a properly staked gas key along with a Melonite coating for extended performance. They also feature a Shot Peened/ MP tested Matched bolt (with upgraded extractor) which is designed to lock up perfectly with their extensions for extreme accuracy. These BCG's are made to withstand Full-Auto rated fire and unforgiving use from the end user. Shop with KYGUNCO for the best selection, competitive pricing, and exceptional customer service. Experience the difference that comes with buying from a trusted outdoor retailer with over 20 years of experience in the industry. ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## More from Rosco Manufacturing ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/rosco-manufacturing-bolt-carrier-group-5.56-300-blk-fits-ar-15-black#webpage","@type":"WebPage","description":"Black Melonite bolt carrier group for AR-15 platforms chambered in 5.56 or .300 BLK. 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