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Rosco Manufacturing Bloodline
California Proposition 65 Warning

This product can expose you to chemicals including lead, known to cause cancer and birth defects. For more info visit P65Warnings.ca.gov.

Rosco Manufacturing

Bloodline

$163.00
$146.70
Sale Price
Available California compliant

Rosco Manufacturing Bloodline Barrel, Heavy Profile, 300BLK, 8.2" Threaded Barrel, 5/8X24 Thread Pitch, 1:7 Barrel Twist, Pistol-Length Gas System, 4150 CMV, Fits AR15, Nitride Finish, Black BL-82-HB-300BLK-7-P

Key Details
Brand Rosco Manufacturing
Manufacturer Part Number BL-82-HB-300BLK-7-P
UPC 181969500111
SKU ROSBL-82-HB-300BLK-7-P
Current Stock 36 available
Quantity Updated Apr 30, 2026 9:30 AM
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Purchase Requirements
  • Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description

This Rosco 8.2" 300 Blackout Bloodline Barrel is designed for SBR and pistol use with suppressors. It is the shortest option from Rosco, offering the flexibility of a shorter Personal Defense Weapon (PDW) without sacrificing performance or ballistics. ALL NFA RULES APPLY! Rosco 300 Blackout barrels are made with input from SOCOM end users and some of the original creators of the 300 Blackout caliber. Each barrel is designed to optimize the original purpose of the caliber: being suppressor-friendly and accurate. The goal is to deliver the performance you expect from these AR-15 barrels when using either subsonic or supersonic ammo (depending on barrel length). Twist rates, gas port diameters, and lengths have all been carefully considered during design. Let's just say that Rosco doesn't leave anything to chance.

Features
  • Barrel Length: 8.2";Barrel Weight: 17.73 oz"
  • Barrel Material: 4150 CMV
  • Barrel Caliber: 300 BLK
  • Barrel Profile: Heavy
  • Twist: 1:7
  • Barrel Thread: 5/8X24
  • Gas Block Size: .750
  • Gas System Length: Pistol
  • Barrel Crown: 11 Degree
  • Barrel Finish: Nitride
  • Barrel Extension Finish: Nitride
Specifications
UPC: 181969500111
Manufacturer: Rosco Manufacturing
Manufacturer Part #: BL-82-HB-300BLK-7-P
Model: Bloodline
Barrel Length: 8.2"
Finish: Nitride
Type: Barrel