Rosco Manufacturing Bloodline 5.56 AR-15 Barrel Government Mid-Length - 14.5"
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Rosco Manufacturing
Overview
The Rosco Manufacturing Bloodline 5.56 AR-15 Barrel features a 14.5-inch length with an M4 profile, making it an excellent choice for builds that require a balance of maneuverability and performance. This barrel is chambered in 5.56 NATO with a mid-length gas system, which helps to enhance reliability and reduce recoil, while the 1:7 twist rate provides versatility in stabilizing a variety of bullet weights. Commonly found in mid-length gas system builds, this barrel is ideal for those looking to create a compact, yet capable rifle.
Specifications
Rosco Manufacturing Bloodline 5.56 AR-15 Barrel Government Mid-Length - 14.5"
Build history on GunPartPicker
Builders have been adding the Rosco Manufacturing Bloodline 5.56 AR-15 Barrel Government Mid-Length - 14.5" to their builds on GunPartPicker since March 2026. All time, it ranks #36 of the 811 barrels builders have added. Builds with this barrel are nearly all chambered in 5.56 NATO, nearly all on mid-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 6 of the 7 retailers we track have it in stock. The best price drifted down from $131.49 to $109.99 over August 2026 without a real sale. Buying today, the lowest price is $129.76 at Optics Planet, above August's low of $109.99, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Read the guide: AR-15 Barrel Length & Brand Report →Check it against the live catalog:
Frequently Built With
The part most often added in each category by the 16 builds that include this one
Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4
Bravo Company M16 Bolt Carrier Group Black
Breek Arms AR-15 Warhammer MOD2 Ambidextrous Charging Handle Black
WMD Guns AR-15 Gas Tube Nitromet Mid-Length
Midwest Industries HK 416 Handguard Free Float M-LOK - Handguard Free Float Alumiunum 13.5" Ral 8000
Strike Industries Collar Adjustable Gas Block
Builds Featuring This Part
See all 4 →Builds in the community that include the Rosco Manufacturing Bloodline 5.56 Ar-15 Barrel Government Mid-Length - 14.5"
| Build | Parts | Total |
|---|---|---|
 | 30 | $5283.47 |
 | 26 | $2829.88 |
 | 8 | $812.46 |
 | 24 | $3929.29 |
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