Home / AR Parts / Rosco Manufacturing / Rosco Manufacturing Bloodline AR-15 Barrel 5.56x45mm NATO 14.5" USASOC Contour 1:7" Twist Black Nitride
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Rosco Manufacturing Bloodline 14.5" 5.56 NATO Mid-Length 1:7 Nitride Barrel
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.750 Gas Block Size
11 Degree Barrel Crown
14.5 Government Profile Barrel"
1:7 Twist Rate
Designed for Modern Carbine Usage
Mid-Length Gas System
Specifications
Caliber
Brand
Model
MPN
BL-145-GVT-556-7-M
UPC
181969500050
MSRP
$180
Barrel Length
14.5"
Finish
Nitride
Fits
AR-15
Color
Black
Description
The Rosco Manufacturing Bloodline 14.5-inch barrel is a replacement barrel for AR-15 platform rifles, chambered for 5.56x45mm NATO and marked as compatible with 223 Remington. It is intended for builds in the short-barreled rifle or pistol category, where barrel length and gas system matter most.
The barrel is made from 4150 CMV steel with a black nitride finish on the barrel and barrel extension. It measures 14.5 inches, uses a 1:7 twist rate, and has a 1/2-28 thread pitch for muzzle devices. The muzzle is finished with an 11-degree crown. The retailer states that the twist rate, gas port diameter, and materials were chosen for the barrel length, and that all NFA rules apply to this barrel.
- Barrel Length: 14.5 inches
- Caliber: 5.56x45mm NATO, 223 Remington
- Twist Rate: 1:7
- Material: 4150 CMV steel
- Finish: Black nitride
- Thread Pitch: 1/2-28
- Muzzle Crown: 11 degrees
- Platform: AR-15







