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Rosco Manufacturing Purebred .300 AAC Blackout Barrel Up to 10% Off w/ Free S&H — 3 models

Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
1 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
2 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
3 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
4 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
5 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
6 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
7 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
8 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
9 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
10 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
11 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
12 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
13 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
14 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
15 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
16 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
17 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
18 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
19 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
20 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
21 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
22 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
23 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P
24 of 24 images
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P

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Questions & Answers
What's the total weight of the 10.5" please? Manufacturer Answer

the Rosco Purebred 10.5" .300blk barrel weighs approx. 21 ounces

by Rosco Customer Service, Manufacturer, September 25, 2025
Does this come with a gas tube like the k9 series does? Manufacturer Answer

No, the Rosco .300blk barrel requires a standard Pistol Length gas tube that is sold separately.
only the K9 Series barrels will come supplied with their appropriate length gas tube due to their proprietary measurements

by Rosco Customer Service, Manufacturer, September 25, 2025
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review 300 blk 8.2" barrel by Just some dude., Verified Owner, March 31, 2020
Roaco manufacturing has been producing quality barrels for several US companies. These private labeled barrels are in many more rifles / pistols then you could bivalve and you may already own one without knowing it. The only reason for this demand is...
Read More...
4/4 found this helpful
Helpful Positive Review Very accurate by fxh, February 9, 2019
Excellent barrel. Quality finish and good fit. This barrel is producing sub MOA groups with my reloads. Appears to like H110 powder over a 125 grain bullet best. The 1 in 7 twist has no problem stabilizing bullets sizes from 110 grains to 155 grains....
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3/3 found this helpful
Most Recent Reviews So far so good by G3 Dimitri, Verified Owner, April 19, 2025
Only have 100 rounds through it but it seems decent, would be nice if it came with 1/5 twist rate instead of 1/7. The threads were incredibly smooth. Please note the barrel only has 1 detent for gas block screws so unless you pin gas block this may n...
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Most Recent Reviews Rosco 416 stainless barrel 300 black out by Ben Short Shorty, Verified Owner, July 20, 2024
I think it looks awesome and it seems to shoots perfect. It one issue in 300 rounds
Most Recent Reviews Surprised with the Bulldog by Jaret, Verified Owner, July 28, 2022
Very accurate on my last build. Surprised for such a short barrel. Zero issues with assembly. I’ve been a Ballistic fan, but will try more Roscos in the future. If I had to find a complaint, I’d like it to come with 2 dimples instead of just 1 for...
Read More...
Read All 5 Reviews
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Product Info for Rosco Manufacturing Purebred .300 AAC Blackout Barrel

Pick up a Rosco Manufacturing Purebred .300 AAC Blackout Barrel to advance your aim and overall performance when putting shots on target. These Rifle Barrels by Rosco Manufacturing are constructed from 416R stainless steel for the toughness you need in the field. Plus, Rosco Manufacturing precision-machined these Rosco Manufacturing .300 AAC Blackout Barrels from scratch in their RI facility to ensure each one meets the highest quality standards possible. You can also be sure that all the materials and craftsmanship that go into these barrels are of the highest quality possible. The Rosco Manufacturing Purebred Heavy Profile Barrel is the perfect match for your pistol if you want a more powerful firearm.image

Specifications for Rosco Manufacturing Purebred .300 AAC Blackout Barrel:

Manufacturer: Rosco Manufacturing
Finish: 80 Grit Bead Blast
Fabric/Material: 416R Stainless Steel
Caliber: .300 AAC Blackout
Barrel Profile: Heavy
Threads per Inch: 5/8x24
Barrel Material: 416R Stainless Steel
Flutes: No
Gun Make: AR Platform
Gun Model: AR-15
Condition: New
Gas Block Journal Size-Length: 1.2 in
Country of Origin: USA
Gas System: Pistol Length

Features of Rosco Manufacturing Purebred Barrel, Heavy Profile, .300 BLK

  • Gas Block Size .750
  • Barrel Crown Step Crown

Package Contents:

  • Rosco Manufacturing Purebred Barrel, Heavy Profile, .300 BLK

What firearm models does the manufacturer say Rosco Manufacturing Purebred .300 AAC Blackout Barrel is compatible with?

The manufacturer says that Rosco Manufacturing Purebred .300 AAC Blackout Barrel is compatible with AR-15

Rosco Manufacturing Purebred .300 AAC Blackout Barrel Orderable Models

List of Orderable Models

Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P , MPN: PB-82-HB-300BLK-7-P , UPC: 2619682 , Code: 3FY-ATB-985GA-PB-82-HB-300BLK-7-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 16in, Pistol, Heavy, 1-8 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-16-HB-300BLK-8-P , MPN: PB-16-HB-300BLK-8-P , UPC: 181969500296 , Code: 3FY-ATB-985GA-PB-16-HB-300BLK-8-P
Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P , MPN: PB-105-HB-300BLK-7-P , UPC: 181969500289 , Code: 3FY-ATB-985GA-PB-105-HB-300BLK-7-P

Rosco Manufacturing Purebred .300 AAC Blackout Barrel Unavailable & Discontinued Models

List of Unorderable Models

DEMO, Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 8.2in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-82-HB-300BLK-7-P , MPN: PB-82-HB-300BLK-7-P-DEMO , Code: 3FY-ATB-985GA-PB-82-HB-300BLK-7-P-DEMO
DEMO, Rosco Manufacturing Purebred .300 AAC Blackout Barrel, 10.5in, Pistol, Heavy, 1-7 Twist, 5/8x24 Thread, 80 Grit Bead Blast, Stainless, PB-105-HB-300BLK-7-P , MPN: PB-105-HB-300BLK-7-P-DEMO , Code: 3FY-ATB-985GA-PB-105-HB-300BLK-7-P-DEMO
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