Home / AR Parts / Rosco Manufacturing / Rosco Manufacturing Bloodline AR-15 Barrel 300 AAC Blackout 10.5" Heavy Contour 1:7" Twist Black Nitride
Rosco Manufacturing Bloodline AR-15 Barrel 300 AAC Blackout 10.5" Heavy Contour 1:7" Twist Black Nitride
Lowest Price
MSRP
$164.95
Savings
23% off
In Stock at
11 Stores
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Barrel Crown: 11 Degree
Caliber: 300 BLK
Finish: Nitride
Gas Block Size: .750
Gas Length: Pistol
Length: 10.5";Weight: 21.4 oz"
Material: 4150 CMV
Profile: Heavy
Specifications
Caliber
Brand
Model
MPN
BL-105-HB-300BLK-7-P
UPC
181969500128
Description
This Rosco 300 Blackout (300 BLK) barrel was designed for SBR and Pistol use in conjunction with suppressors. The 300 Blackout Rosco barrel was made to be a direct replacement for any MK 18 platforms that are currently in 5.56 NATO. The barrel is also perfect for carbines which require a slightly longer rail in order to run PEQ-15's, D-BAL (series), or any laser aiming devices comfortably. All NFA rules apply Features11 Degree barrel crownNitride Barrel and barrel extension4150 CMV materials
Rosco Manufacturing Bloodline AR-15 Barrel 300 AAC Blackout 10.5" Heavy Contour 1:7" Twist Black Nitride Price History and Deals
ARMSAGORA tracked 31 days of price history for Rosco Manufacturing Bloodline AR-15 Barrel 300 AAC Blackout 10.5" Heavy Contour 1:7" Twist Black Nitride. The lowest tracked price in this period was $127.09, with prices ranging up to $164.95 from Apr 23, 2026 through May 23, 2026.
Current price is at the tracked 30-day low
- Current Low
- $127.09
- 30-Day Low
- $127.09
- Average
- $147.25
- Median
- $147.25
- Retailers
- 9
