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Rosco Manufacturing
Overview
The Rosco Manufacturing Bloodline Barrel is a 10.5-inch barrel designed specifically for 9mm builds, featuring a 1:10 twist rate which helps stabilize projectiles for effective accuracy at varying distances. Its blowback gas system is ideal for reliable cycling in pistol-caliber carbines, while the 1/2x28 thread pitch allows for easy attachment of muzzle devices. This barrel is commonly found in compact AR-15 builds that prioritize maneuverability and performance in close-quarters situations.
Rosco Manufacturing Bloodline Barrel 9mm 10.5 inch 1/10 Twist 1/2 X 28 Thread Black Nitride
It was out of stock everywhere we track every time we checked in October 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $104.21 at BattleHawk Armory for when it comes back.
Prices checked · refreshed daily across 37 retailers
We ranked every barrel by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Barrel Length & Brand Report →Check it against the live catalog:
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Builds in the community that include the Rosco Manufacturing Bloodline Barrel 9mm 10.5 inch 1/10 Twist 1/2 x 28 Thread Black Nitride
| Build | Parts | Total |
|---|---|---|
![]() | 14 | $1473.45 |
![]() | 14 | $1101.88 |
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