--- title: "Rosco Manufacturing Black Bolt Carrier Group" description: "New black AR-15 bolt carrier group for 5.56/.300 BLK. Phosphate coated with a chrome-lined gas key and bolt channel, plus a properly staked gas key." canonical_url: "https://www.kygunco.com/product/272456-rosco-manufacturing-bolt-carrier-group-5.56-300-blk-fits-ar-15-black" meta: author: KYGUNCO "og:description": "New black AR-15 bolt carrier group for 5.56/.300 BLK. Phosphate coated with a chrome-lined gas key and bolt channel, plus a properly staked gas key." "og:image": "https://cdn.kygunco.com/assets/products/272456/thumbnail.jpg" "og:image:height": "500" "og:image:width": "500" "og:title": "Rosco Manufacturing Black Bolt Carrier Group" --- > 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-002 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/272456/main.jpg) 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 This black Rosco Manufacturing bolt carrier group fits AR-15 platforms chambered in 5.56 or .300 BLK. It has a phosphate-coated carrier, chrome-lined gas key and bolt channel, a properly staked gas key, and a matched, shot-peened and MPI-tested bolt with an upgraded extractor. $165.74 ** 5 interest-free payments of **$33.15** 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 Fulfilled by a partner warehouse. ** Partner Fulfilled Selling fast. Limited quantities available. Item # 272456 Style RSC-ROS-BCG-002 UPC 181969500838 Condition New Manufacturer [Rosco Manufacturing](https://www.kygunco.com/brand/rosco-manufacturing) Weight 3 lb These 5.56 / 300 BLK Bolt Carrier Groups are Phosphate Coated with Chrome Lined Gas Key & Bolt Channel, Full-Auto rated, properly staked, and the bolts are Matched to the barrel. Their Rosco Phosphate Bolt Carrier Groups are designed to meet the modern-day carbine shooters requirements. For their Phosphate Bolt Carrier Groups - they choose to team up with the best - Microbest, so the end user has dependability time after time, every time. 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. These BCG's are to MIL Specification and have a properly staked gas key along with a chrome lined 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/272456-rosco-manufacturing-bolt-carrier-group-5.56-300-blk-fits-ar-15-black#webpage","@type":"WebPage","description":"New black AR-15 bolt carrier group for 5.56/.300 BLK. Phosphate coated with a chrome-lined gas key and bolt channel, plus a properly staked gas key.","name":"Rosco Manufacturing Black Bolt Carrier Group","url":"https://www.kygunco.com/product/272456-rosco-manufacturing-bolt-carrier-group-5.56-300-blk-fits-ar-15-black","about":{"@id":"https://www.kygunco.com/product/272456-rosco-manufacturing-bolt-carrier-group-5.56-300-blk-fits-ar-15-black#/schema//kygunco"},"breadcrumb":{"@id":"https://www.kygunco.com/product/272456-rosco-manufacturing-bolt-carrier-group-5.56-300-blk-fits-ar-15-black#breadcrumb"},"isPartOf":{"@id":"https://www.kygunco.com/#website"},"potentialAction":[{"@type":"ReadAction","target":["https://www.kygunco.com/product/272456-rosco-manufacturing-bolt-carrier-group-5.56-300-blk-fits-ar-15-black"]}]},{"@id":"https://www.kygunco.com/#/schema/organization/kygunco","alternateName":"Kentucky Gun Company","currenciesAccepted":"USD","description":"Shop KYGUNCO for firearms, ammo, gun parts, optics, shooting accessories, and outdoor gear with online ordering and shipping options across the U.S.","email":"info@kygunco.com","foundingDate":"1946-01-01","hasMap":"https://www.google.com/maps/dir/?q=place_id:ChIJfwecWCBSaIgRguIjuoPha40","logo":"https://www.kygunco.com/logos/kygunco.svg","name":"KYGUNCO","priceRange":"$$","telephone":"+1-502-348-3594","url":"https://www.kygunco.com","@type":["Organization","LocalBusiness"],"address":{"@type":"PostalAddress","streetAddress":"401 Glenwood Drive","addressLocality":"Bardstown","addressRegion":"KY","postalCode":"40004","addressCountry":"US"},"contactPoint":{"@type":"ContactPoint","contactType":"Customer Service","telephone":"+1-502-348-3594","email":"info@kygunco.com","availableLanguage":"English","hoursAvailable":{"@type":"OpeningHoursSpecification","dayOfWeek":["https://schema.org/Monday","https://schema.org/Tuesday","https://schema.org/Wednesday","https://schema.org/Thursday","https://schema.org/Friday"],"opens":"09:00","closes":"17:00"}},"geo":{"@type":"GeoCoordinates","latitude":37.8032518,"longitude":-85.4252895},"hasMerchantReturnPolicy":{"@type":"MerchantReturnPolicy","name":"Standard Return Policy","inStoreReturnsOffered":true,"merchantReturnDays":30,"returnPolicyCategory":"https://schema.org/MerchantReturnFiniteReturnWindow","returnMethod":["https://schema.org/ReturnByMail","https://schema.org/ReturnInStore"],"returnFees":"https://schema.org/FreeReturn","refundType":["https://schema.org/ExchangeRefund","https://schema.org/FullRefund","https://schema.org/StoreCreditRefund"],"applicableCountry":"US"},"hasOfferCatalog":{"@type":"OfferCatalog","name":"KYGUNCO Catalog","url":"https://www.kygunco.com/search"},"image":{"@id":"https://www.kygunco.com/#/schema/image/1"},"knowsAbout":["Firearms sales and transfers","FFL dealers and compliance","Optics and accessories","Outdoor and hunting equipment"],"openingHoursSpecification":[{"@type":"OpeningHoursSpecification","dayOfWeek":["https://schema.org/Monday","https://schema.org/Tuesday","https://schema.org/Wednesday","https://schema.org/Thursday","https://schema.org/Friday","https://schema.org/Saturday"],"opens":"09:00","closes":"18:00"}],"paymentAccepted":["Credit Card","Credova","Sezzle"],"sameAs":["https://x.com/kygunco","https://www.facebook.com/kentuckygunco","https://www.instagram.com/kygunco","https://www.youtube.com/@thekentuckygunco","https://rumble.com/c/KYGUNCO"]},{"@id":"https://www.kygunco.com/product/272456-rosco-manufacturing-bolt-carrier-group-5.56-300-blk-fits-ar-15-black#product","@type":"Product","description":"New black AR-15 bolt carrier group for 5.56/.300 BLK. Phosphate coated with a chrome-lined gas key and bolt channel, plus a properly staked gas key.","gtin":"181969500838","mpn":"ROS-BCG-002","name":"Rosco Manufacturing Black Bolt Carrier Group","sku":"272456","additionalProperty":[],"brand":{"@type":"Brand","name":"Rosco Manufacturing"},"image":["https://cdn.kygunco.com/assets/products/272456/thumbnail.jpg"],"mainEntityOfPage":{"@id":"https://www.kygunco.com/product/272456-rosco-manufacturing-bolt-carrier-group-5.56-300-blk-fits-ar-15-black#webpage"},"offers":{"@type":"Offer","availability":"https://schema.org/InStock","price":165.74,"priceCurrency":"USD","url":"https://www.kygunco.com/product/272456-rosco-manufacturing-bolt-carrier-group-5.56-300-blk-fits-ar-15-black","itemCondition":"https://schema.org/NewCondition","priceValidUntil":"2027-12-30T00:00:00.000Z"},"weight":{"@type":"Mass","value":"3 lb"}},{"@id":"https://www.kygunco.com/product/272456-rosco-manufacturing-bolt-carrier-group-5.56-300-blk-fits-ar-15-black#breadcrumb","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","name":"Home","item":"https://www.kygunco.com","position":1},{"@type":"ListItem","name":"Shooting","item":"https://www.kygunco.com/category/shooting","position":2},{"@type":"ListItem","name":"Gun Parts","item":"https://www.kygunco.com/category/shooting/gun-parts","position":3},{"@type":"ListItem","name":"Handgun & Rifle Parts","item":"https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts","position":4},{"@type":"ListItem","name":"Rifle Parts","item":"https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts","position":5},{"@type":"ListItem","name":"Bolt Carrier Group","item":"https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts/bolt-carrier-group","position":6},{"@type":"ListItem","name":"RSC-ROS-BCG-002","position":7}]},{"@id":"https://www.kygunco.com/#/schema/image/1","@type":"ImageObject","contentUrl":"https://cdn.kygunco.com/assets/backdrops/facade.jpg","inLanguage":"en","url":"https://cdn.kygunco.com/assets/backdrops/facade.jpg"}]} ``` ## Sitemap See the full [sitemap](https://www.kygunco.com/sitemap.md) for all pages.