Tokyo Marui AA-12 Full Auto Shotgun - DEFCON AIRSOFT
ACS Airsoft - Tokyo Marui AA-12 We just have one left! Pick up a drum magazine for it at 20% Off with purchase of gun! | Facebook
According to in game info ACS-12 is a shotgun but it's kill doesn't count for shotgun challenges. BOSG and TCSG12 doesn't have this problem : r/Rainbow6