Kel-Tec KSG410 .410 Bore Bullpup Pump-Action Shotgun, 18.5 inch Barrel, Dual Magazine Tubes, 3 inch Chamber, Cyl Bore
The Kel-Tec KSG410 is a compact, U.S.-made bullpup pump shotgun built specifically for the .410 bore. It uses a bottom-loading/ejecting layout with dual, selectable magazine tubes and an 18.5 inch barrel inside a 26.1 inch overall length. A full-length, T-marked Picatinny top rail is installed, and the gun weighs approximately 5.4 lb unloaded.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Specific Condition Notes: Light rubs and small handling marks are present from prior handling and use. Please refer to the photos for close views of these areas.
What’s Included
- Kel-Tec KSG410 .410 bore pump-action shotgun
This KSG-series variant brings Kel-Tec’s dual-tube, bullpup design to the .410 bore. The two selectable magazine tubes allow capacities of 5+5+1 with 3 inch shells or 7+7+1 with 2.5 inch shells, for up to 14+1 on board. Loading and ejection are from the bottom.
Despite its 18.5 inch steel barrel, the gun remains compact at 26.1 inches overall and about 5.4 lb unloaded. Length of pull is 13.25 inches, contributing to a short, maneuverable package.
The barrel uses a fixed cylinder bore (Cyl Bore) and the chamber is cut for 3 inch shells. It is designed specifically for the .410 bore.
The receiver is stamped steel (serialized) housed within polymer clamshell furniture; the stock and handguard are polymer. Features include a textured polymer pump fore-end, a textured polymer pistol grip with the Kel-Tec pattern, a rubber buttpad, and a rear sling slot. A T-marked, full-length Picatinny top rail is installed. Made in the USA.

