Armscor VR80, Semi-automatic Shotgun, California Complaint, 12 Gauge, 3 Chamber, 20 Barrel, Black Synthetic Thumbhole Stock, Flip Up Front and Rear Sights, 5 Rounds VR80-CA The VR80 12GA shotgun is unmatched. This gas-operated semi-automatic 12GA shotgun has an upper and lower receiver constructed from 7075 T6 aluminum. The VR80 offers familiar AR-15 ergonomics and controls\" so you don\'t need to re-train your mechanics when running 3 gun or out blasting targets.