Kel-Tec Ksgnrblk Ksgnr: Kel-tec Ksg-nr The KSG(TM) is no ordinary tactical shotgun. Its dual tube magazines hold eight 3 inch 12GAuge shells (plus one in the chamber) with the flexibility of switching between various projectiles. A patented downward ejection system makes it truly ambidextrous while its 26.1 inch overall length and 18.5 inch Cylinder bore barrel and 6.8lbs of weight make it is as compact as legally possible.