Standard Manufacturing DP-12 12 Gauge Bullpup Pump-Action Shotgun, Dual 18.75" Barrels, 16+1 Capacity
The Standard Manufacturing DP-12 stands out as the only production shotgun that fires a round from each of its two 18.75" barrels with every pump cycle. Its compact bullpup layout keeps overall length to just 29.5" while twin 7-round magazine tubes deliver a full 16+1 capacity. Built around a 7075-T6 aluminum receiver with a reinforced polymer shell, this U.S.–made shotgun combines robust construction, high capacity, and ambidextrous controls in a package made for serious defensive or range use.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent – clean, mirror finish, no signs of wear.
Specific Condition Notes: Light signs of wear and handling are present but do not affect function or appearance.
What’s Included
- Standard Manufacturing DP-12 12 Gauge pump-action shotgun
The DP-12 uses a patented dual-barrel, dual-magazine system (U.S. Patent 9,115,954) that lets you fire two shots—one per barrel—before cycling the action. Each pump loads both chambers simultaneously, keeping follow-up shots fast and intuitive.
Its bullpup configuration positions the action behind the trigger, yielding a maneuverable 29.5" overall length without sacrificing barrel length or velocity. This makes the DP-12 easier to handle in confined spaces while still delivering full-sized shotgun performance.
A full-length 34-slot MIL-STD-1913 top rail and a 7-slot lower rail give you plenty of room for optics, lights, and other accessories. The polymer forend features molded slots for additional attachments, and the 13.0" rail length supports a wide range of sighting setups.
The frame combines a polymer outer shell with a 7075-T6 aluminum core for strength and reduced weight. Ambidextrous safety and slide-lock controls, along with bottom loading and ejection, make the shotgun comfortable for right- or left-handed shooters.
A single trigger manages both barrels, and the integral polymer stock includes a rubber recoil pad to tame 12 Gauge recoil. Chambering accepts both 2 3/4" and 3" shells, giving you flexibility in ammunition choice.




