Rosco Manufacturing Bloodline 300 Blackout AR-15 Barrel Heavy Pistol - 10.5"
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Rosco Manufacturing
Overview
The Rosco Manufacturing Bloodline 300 Blackout AR-15 Barrel is designed specifically for heavy pistol builds, featuring a 10.5-inch length that enhances maneuverability while maintaining accuracy. With a 1:8 twist rate, this barrel stabilizes a range of bullet weights, making it versatile for various ammunition choices within the 300 Blackout caliber. Its pistol-length gas system optimizes reliability and function in compact setups. This barrel is commonly found in builds that prioritize a short, powerful configuration, ideal for close-quarters engagements.
Specifications
Rosco Manufacturing Bloodline 300 Blackout AR-15 Barrel Heavy Pistol - 10.5"
Available Merchants(7)
Prices checked
Stock Alert
October 2026 on GunPartPicker
Rosco Manufacturing Bloodline 300 Blackout AR-15 Barrel Heavy Pistol - 10.5" ranked #80 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 #335 of the 1,039 barrels builders have added. Builds with this barrel are nearly all chambered in 300 Blackout, nearly all on pistol-length gas, and nearly all AR-15.
It was hard to find in October 2026, in stock on only 2 of the 7 days we checked, and today none of the 7 retailers we track has it in stock right now. Listed prices start at $120.99 at Ammunition Depot 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
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Builds Featuring This Part
See all builds →Builds in the community that include the Rosco Manufacturing Bloodline 300 Blackout Ar-15 Barrel Heavy Pistol - 10.5"
| Build | Parts | Total |
|---|---|---|
 | 18 | $1790.19 |
 | 31 | $2962.06 |
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