Mid or carbine gas system

I did some research on the UPC code for this rifle and it is a "carbine" length gas system. If you look very closely at the expanded picture of this rifle, you can just make out the gas block which is about half way down the 16" barrel. This is where a "c

Carbine Length Gas System see *****Specifications and Features: Stag Arms LLC AR-15 Semi Auto Rifle STAG580023 Distributor Exclusive Direct Gas Impingement Rifle Right Hand Ejection System 5.56 NATO (accepts .223 Remington) 16" 4150 Steel Barrel (Chrome L