Rosco Manufacturing make some beautifully crafted high quality barrels. So much so that all our new flagship model uppers will feature either their Blood Line or Purebred barrels. This upper features the Purebred 18″ mate stainless steel barrel with nickel boron barrel extensions. The Aero receiver are lap fitted to each barrel and the 15″ mlok handgun is torqued to spec. The gas system is a stainless gas tube with Aero Nitride gas block. For a few dollars more the gas tube can be upgraded to Melonite. A Helius SS six port brake finishes this upper off.
The upper can be purchased with or without a bold carrier group and charging handle. Selecting a BCG will require a charging handle. Use the drop down menu to builder you up out range ready!
If you need other options please contact us. Custom upper request are welcome!
*Uppers are built to order and take 3-4 business days to ship*
*One year manufacture warranty*