Kel-Tec KS7, Pump Action Shotgun, 12 Gauge, 3 Chamber, 18.5 Barrel, Green Finish, Synthetic Stock, 6Rd KS7GRN The KS7 is designed for many applications, but it lends itself perfectly to home defense, back country hiking or anywhere you need a compact 12ga shotgun. Its intuitive, simple features, optional Picatinny-style rail and M-LOK accessory mounting solutions make it very versatile.