The Rosco Manufacturing (brand part no. SP-BL-82-300-BCG-GTP-NGB-001) Rosco Bloodline Sauce Pack, 8.2in, .300 Blackout (brand part no. SP-BL-82-300-BCG-GTP) bundles Rosco’s in-house Bloodline barrel with a matched bolt carrier group and pistol-length gas tube, sized for an 8.2-inch .300 Blackout carbine/pistol build.

Key Specifications

• Chambered in .300 AAC Blackout
• Barrel length of 8.2 inches
• Muzzle threaded 5/8×24
• Bundles a matched bolt carrier group and pistol-length gas tube along with the barrel
• Parts in the pack are synchronized to work together for peak performance
• Listed under Rosco’s Barrel product line

Frequently Asked Questions

Is this barrel/pack itself an NFA item? No. This is a bare 8.2in barrel-and-parts pack under the 16in federal rifle minimum with no receiver included, so it is not itself a regulated item. Putting it on a shouldered rifle lower makes a short-barreled rifle; since October 9, 2026, ATF no longer requires Form 1 approval or registration for that, but state law still applies, and taking an SBR across state lines needs an approved ATF Form 5320.20.

What is included in a Sauce Pack? An 8.2-inch .300 Blackout Bloodline barrel, a matched bolt carrier group, and a pistol-length gas tube.

Buy the Rosco Bloodline Sauce Pack, 8.2in, .300 Blackout

Order the Rosco Bloodline Sauce Pack, 8.2in, .300 Blackout from our catalog, or browse more AR barrels at Schaefer Defense. Ships fast from our Lubbock, Texas gun shop.