Rosco Manufacturing Purebred 300 Blackout AR-15 Barrel Heavy Pistol Length - 8.2"
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Rosco Manufacturing
Overview
The Rosco Manufacturing Purebred 300 Blackout AR-15 Barrel is an 8.2" heavy profile barrel designed specifically for the 300 Blackout caliber. With a pistol-length gas system, this barrel enhances reliability and performance in shorter builds, while its 1:7 twist rate ensures stability for a wide range of bullet weights. Commonly found in pistol builds chambered in 300 Blackout, this barrel is ideal for those looking to maximize velocity and accuracy in compact configurations.
Specifications
Rosco Manufacturing Purebred 300 Blackout AR-15 Barrel Heavy Pistol Length - 8.2"
Available Merchants(3)
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Build history on GunPartPicker
Builders have been adding the Rosco Manufacturing Purebred 300 Blackout AR-15 Barrel Heavy Pistol Length - 8.2" to their builds on GunPartPicker since March 2026. All time, it ranks #374 of the 815 barrels builders have added.
It was out of stock everywhere we track for all of August 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $169 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
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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 1 →Builds in the community that include the Rosco Manufacturing Purebred 300 Blackout Ar-15 Barrel Heavy Pistol Length - 8.2"
| Build | Parts | Total |
|---|---|---|
 | 25 | $3617.99 |
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