--- title: "ROSCO MANUFACTURING Bloodline Barrel 9mm 5.5\" Black 1:10 Twist 1/2x28" canonical_url: "https://www.kygunco.com/product/rosco-manufacturing-bloodline-barrel-9mm-5.5-black-110-twist-1-2x28" meta: author: KYGUNCO "og:image": "https://cdn.kygunco.com/assets/products/272450/thumbnail.jpg?v=1733338238" "og:image:height": "500" "og:image:width": "500" "og:title": "ROSCO MANUFACTURING Bloodline Barrel 9mm 5.5\" Black 1:10 Twist 1/2x28" --- > 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) / [Handgun Parts](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/handgun-parts) / [Handgun Barrels](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/handgun-parts/handgun-barrels) / RSC-BL-55-M4-9mm-10 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/272450/main.jpg?v=1733338238) For illustration purposes only, this image may not be an exact representation of the product. # ROSCO MANUFACTURING Bloodline Barrel 9mm 5.5" Black 1:10 Twist 1/2x28 $107.10 ** 5 interest-free payments of **$21.42** 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 # 272450 Style RSC-BL-55-M4-9mm-10 UPC 181969500142 Condition New Manufacturer [Rosco Manufacturing](https://www.kygunco.com/brand/rosco-manufacturing) Weight 3 lb Bloodline 5.5" 9mm Barrel: This Rosco 5.5" 9mm Barrel was primarily designed for suppressed carbines/ pistols where the handguard will be ran over the rail. It will give you the flexibility of running a suppressed platform that offers the most compact size possible without sacrificing performance. Twist rates have also been taken into account in order to optimize performance for a multitude of rounds that you may also be running out of your duty/ concealed carry pistol in order to allow a cross platform ballistic familiarity. ALL NFA RULES APPY! Rosco 9mm barrels are perfect for sub-caliber carbine platforms. Rosco has taken the time to understand the purpose for these platforms and design a barrel which will support it effectively. It is the goal to get you the performance that you seek out of these barrels whether you are running suppressed, defense ammo, sub-sonic ammo or supersonic ammo (depending on barrel length). Twist rates, and lengths have all been taken into account when Rosco sets out to make these barrels. 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-bloodline-barrel-9mm-5.5-black-110-twist-1-2x28#webpage","@type":"WebPage","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"ROSCO MANUFACTURING Bloodline Barrel 9mm 5.5\" Black 1:10 Twist 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