"The KSG is a progressive shotgun. Two piped chambers is make sure that the party doesn't end to soon, even when a really large amount of dead dancers appear." —In-game description
"The KSG is a second-gen shotgun. Dual tube magazines and minimal kick ensure tons of fun, perfect for groups, mobs, and hordes. Feeling spunky? Unload both barrels into a single zombie and count the pieces. If you can count that high." —New description
The KSG is a pump-action shotgun like the RMGT 870 and Tactics and reloads shell by shell as well. It is unlocked at a higher rank than the RMGT 870, and rightly so because it is overall an improvement to the weapon. Although it comes with a hefty price tag of 10,000 and a total cost of 205,000 after upgrades, it is considered rather inferior to the to the Striker; the Striker is an automatic shotgun that has a decent rate of fire and reloads by magazine holding 12 shells compared to a shell by shell reload of 6.