DP-12 double-barreled shotgun

The DP-12 is a bullpup 12-gauge pump action double-barreled shotgun designed by Standard Mfg Co.. It has two tube magazines which each feed their own barrel. Each magazine tube can hold up to seven 2.75-inch (70 mm) 12-gauge shotshells or six 3-inch (76 mm) shotgun shells.

The Standard Mfg Co. DP-12 shotgun is a manually operated, pump (slide) action weapon. The first trigger pull fires the right barrel and the second fires the left.[2] The sliding forend is connected to the bolt by dual operating bars. Ammunition is fed from two independent magazine tubes, located below the barrels. Rounds are loaded into the magazines through a large loading/ejection port, located at the bottom rear of the gun in the stock, behind the pistol grip. Empty shells are ejected down through the same port. The safety is a cross-bolt manual safety button located above the grip. This, coupled with the center loading and ejection, makes the gun fully ambidextrous. Sighting equipment is not included, but iron sights and/or red dot sights can be installed using the standard Picatinny rail located above the barrels. A second Picatinny rail at the bottom of the slide is installed for the forward grip and, for installation of other accessories. On the end of the barrels you can install different chokes, muzzle braker or any other device. The history of this weapon is not very long because DP-12 is novice on the weapon market.

There are some fun videos with DP-12: