KSG

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 up to seven 2.75-inch (70 mm) 12-gauge shotshells or six 3-inch (76 mm) shotshells. Kel-Tec has also introduced a larger variant, called the KSG25, which holds 24+1 rounds to the originals 14+1 rounds