Home / AR Parts / Rosco Manufacturing / Rosco Manufacturing Bloodline AR-15 Barrel 5.56x45mm NATO 10.5" M4 Contour 1:7" Twist Black Nitride
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Rosco Manufacturing Bloodline 10.5" 5.56 NATO M4 Contour 1:7 Nitride AR-15 Barrel
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.750 Gas Block Size
10.5 M4 Profile Barrel"
11 Degree Barrel Crown
1:7 Twist Rate
Carbine-Length Gas System
Designed for Modern Carbine Usage
Specifications
Caliber
Brand
Model
MPN
BL-105-M4-556-7-C
UPC
181969500012
MSRP
$161
Barrel Length
10.5"
Overall Length
10.5"
Finish
Nitride
Fits
AR-15
Description
The Rosco Manufacturing Bloodline M4 Contour is a 10.5-inch 5.56x45mm NATO replacement barrel for AR-15 platform rifles. It is intended for short-barreled rifle and pistol builds, with the raw listing noting suitability for suppressed use and a balanced patrol carbine setup.
The barrel is made from 4150 CMV steel and finished in black nitride, which applies to the barrel and barrel extension. It has a 1/2-28 thread pitch at the muzzle and an 11-degree crown. Its overall length is 10.5 inches. Twist rate and gas port diameter are not specified in the provided details.
The barrel fits AR-15 platform receivers. All NFA rules apply to short-barreled rifle builds using this barrel.
- Caliber: 5.56x45mm NATO
- Barrel Length: 10.5 in
- Overall Length: 10.5 in
- Material: 4150 CMV
- Finish: Nitride, black
- Thread Pitch: 1/2-28
- Crown: 11 degree
- Fits: AR-15
