--- title: "Rosco Manufacturing 14.5\" M4 5.56 NATO Barrel" description: "Black 14.5\" M4 barrel chambered in 5.56 NATO with a mid-length gas system designed for a smoother gas curve and managed dwell times." canonical_url: "https://www.kygunco.com/product/rosco-manufacturing-m4-barrel-5.56-nato-14.5-mid-fits-ar-15-black" meta: author: KYGUNCO "og:description": "Black 14.5\" M4 barrel chambered in 5.56 NATO with a mid-length gas system designed for a smoother gas curve and managed dwell times." "og:image": "https://cdn.kygunco.com/assets/products/272455/thumbnail.jpg?v=1733338240" "og:image:height": "500" "og:image:width": "500" "og:title": "Rosco Manufacturing 14.5\" M4 5.56 NATO Barrel" --- > 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) / [Rifle Barrels](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts/rifle-barrels) / RSC-BL-145-GVT-556-7-M ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/272455/main.jpg?v=1733338240) For illustration purposes only, this image may not be an exact representation of the product. # ROSCO MANUFACTURING M4 Barrel 5.56 NATO 14.5" Mid fits AR-15 Black The Rosco Manufacturing 14.5" M4 barrel is chambered in 5.56 NATO and features a mid-length gas system. Finished in black, it was designed around USASOC specifications for an Improved Upper Receiver Group, with a longer gas system intended to provide a smoother gas curve and managed dwell times. $136.91 ** 5 interest-free payments of **$27.38** 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 # 272455 Style RSC-BL-145-GVT-556-7-M UPC 181969500050 Condition New Manufacturer [Rosco Manufacturing](https://www.kygunco.com/brand/rosco-manufacturing) Weight 4 lb The 14.5" M4 5.56 NATO Bloodline Barrel (Mid-Length). This 14.5" M4 5.56 NATO Mid-Length barrel was designed around the USASOC specs for an Improved Upper Receiver Group with a little bit of the Rosco touch as well. The longer gas system allows for a smoother gas curve which leads to managed dwell times. This combo creates a great balance of speed and performance 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-m4-barrel-5.56-nato-14.5-mid-fits-ar-15-black#webpage","@type":"WebPage","description":"Black 14.5\" M4 barrel chambered in 5.56 NATO with a mid-length gas system designed for a smoother gas curve and managed dwell times.","name":"Rosco Manufacturing 14.5\" M4 5.56 NATO 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