Rosco Manufacturing Bloodline Sauce Pack AR-15 5.56 NATO 12.5" 4150 CMV Barrel w/ BCG & Gas System - Melonite

The Rosco Manufacturing Bloodline Sauce Pack bundles the core upper-build components an AR-15 shooter needs into one convenient, turnkey package. At the heart of the kit is a 12.5" Bloodline barrel turned from 4150 Chrome Moly Steel and finished in Melonite for outstanding surface hardness, wear resistance, and corrosion protection. The barrel is chambered in 5.56 NATO and cut to a Government profile, with a 1/2"-28 thread pattern ready to accept your choice of muzzle device.

Rosco finishes the Sauce Pack with everything required to get the upper running out of the box: a matched Bolt Carrier Group (BCG), a non-adjustable gas block, and a gas tube sized to the barrel. That combination lets you skip the hassle of sourcing each component separately and brings Rosco's reputation for consistency and quality straight to your bench. Whether you are building a compact carbine, SBR, or AR pistol, the Bloodline Sauce Pack delivers a complete bolt-and-gas solution to pair with your upper receiver.

What's included:

• Rosco Manufacturing Bloodline 12.5" 5.56 NATO Government profile barrel (4150 Chrome Moly Steel, Melonite finish, 1/2"-28 threads)
• Matched Bolt Carrier Group (BCG)
• Non-adjustable gas block
• Gas tube

Note: This listing includes only the barrel, BCG, gas block, and gas tube. A finished AR-15 upper or complete firearm requires additional components - such as an upper and lower receiver, handguard, bolt catch, stock, grip, and optic - that are not part of this Sauce Pack.