Rosco Manufacturing Bloodline 300 Blackout AR-15 Barrel Heavy Pistol - 8.2"
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Rosco Manufacturing
Overview
The Rosco Manufacturing Bloodline 300 Blackout AR-15 Barrel is designed for pistol builds, featuring an 8.2-inch length that optimizes maneuverability while maintaining performance. With a SOCOM profile and a twist rate of 1:7, this barrel effectively stabilizes heavier projectiles, making it ideal for subsonic and supersonic ammunition alike. Commonly found in pistol setups, it is a solid choice for builders looking to enhance their 300 Blackout configurations.
Specifications
Rosco Manufacturing Bloodline 300 Blackout AR-15 Barrel Heavy Pistol - 8.2"
Available Merchants(7)
Prices checked
Stock Alert
October 2026 on GunPartPicker
Rosco Manufacturing Bloodline 300 Blackout AR-15 Barrel Heavy Pistol - 8.2" ranked #131 of the 329 barrels builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #507 of the 1,047 barrels builders have added.
It was in stock most times we checked in October 2026, but today none of the 7 retailers we track has it in stock right now. Listed prices start at $109.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4
Yankee Hill Machine Co. AR-15 Gas Tube Black Rifle
ODIN Works Clamp on Adjustable Low Profile Gas Block - .750"
Spikes Tactical Made in USA Ejection Port Door for AR-15 Style Rifle - SED7002
Foxtrot Mike Products Complete FM9 Premium 9mm AR-15 Lower Receiver
Geissele Super Dynamic Combat (SD-C) Trigger
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
Builds Featuring This Part
See all builds →Builds in the community that include the Rosco Manufacturing Bloodline 300 Blackout Ar-15 Barrel Heavy Pistol - 8.2"
| Build | Parts | Total |
|---|---|---|
 | 13 | $754.72 |
 | 14 | $3577.19 |
 | 19 | $2781.04 |
 | 13 | $913.27 |
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