Rosco Manufacturing BL-145-M4-556-7-C Bloodline 5.56 NATO 14.50" Nitride 4150 CMV Barrel Fits M4 Carbine Media The daylight visible green targeting

The daylight visible green targeting laser uses the latest direct drive diode that burns brightly in extreme temperatures

Includes seven of the most popular pilot sizes:

With these features

Controlled Fracturing bullets are pre-stressed at specific points so that after a predetermined penetration depth

with pre-applied loctite

Rosco Manufacturing BL-145-M4-556-7-C Bloodline 5.56 NATO 14.50" Nitride 4150 CMV Barrel Fits M4 Carbine Media The daylight visible green targetingThis Rosco 14. 5" M4 5. 56 NATO Bloodline Barrel was built around the M4 platform and is designed to be the next evolutionary step in the series. This barrel is perfectly suited for next patrol or duty carbine build.