Stag 15 M-LOK Pistol Upper 300 Blackout 8"

Chambered in .300 Blackout, the Stag Arms AR Pistol Upper Half is a Mil-Spec AR Upper built around a 8" 1/7 twist barrel with a pistol length gas system and a low profile gas block. The 4150 Chrome Moly Vanadium Steel barrels are QPQ treated for advanced case hardening that increases corrosion resistance and increases accuracy potential.