The Kel-Tec KSG is a bullpup 12-gauge pump action shotgun designed by Kel-Tec. It has two tube magazines which the user of the gun can switch between manually. Each tube holds a total of seven 2.75-inch (70 mm) 12-gauge shotshells or six 3-inch (76 mm) shotshells.
During the Hakone Incident, some CIA members carry this weapon. The KSG is later seen in the hands of JSDF Special Forces Group personnel at the Skirmish at Akusho, and may have been scavenged from a fallen CIA agent by SFG personnel.