Standard Manufacturing DP-12 12 Gauge Double-Barrel Bullpup Pump Shotgun, 18.875 in Twin Barrels, Tru-Choke Threaded, 2 3/4 and 3 in Chambers, Matte Black
The Standard Manufacturing DP-12 stands out as a double-barrel bullpup pump shotgun with dual under-barrel magazine tubes and a single trigger that fires the barrels sequentially. This model features threaded twin barrels with a Tru-Choke pattern, a full-length top Picatinny rail, and a compact overall length of about 29.5 inches. It is chambered for both 2 3/4 and 3 inch shells and offers a high on-board capacity with 2 3/4 inch loads. The receiver is a machined 7075-T6 aluminum core with a thermal-coated finish.
Condition
Overall Condition: Poor condition.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Specific Condition Notes: There are minor scratches and blemishes on the exterior. The right barrel/action functions inconsistently; the right action does not actuate with every pump. This shotgun will require repairs to become fully operational.
What’s Included
- Full-length Picatinny ladder rail cover, polymer (installed on top rail)
This DP-12 is configured with twin 18.875 inch barrels that are threaded for Tru-Choke tubes, providing flexibility for muzzle-end configuration. It is chambered for both 2 3/4 and 3 inch shells, and with 2 3/4 inch shells the design supports a 14+2 capacity across its dual magazine tubes and chambers.
The bullpup layout contributes to an overall length of about 29.5 inches while maintaining substantial capacity and barrel length. Weight is approximately 9 lb 12 oz unloaded, and the length of pull measures 14.5 inches, offering a compact yet stable platform.
The receiver core is machined from 7075-T6 aluminum and finished with a thermal-coated treatment. The receiver carries model markings, the "DP-12" designation, and a U.S. Patent No. 9,115,954 marking. A QR code labeled "MANUAL" is present on the receiver.
Controls and furniture include a single trigger with sequential firing, an ambidextrous manual safety, an integrated polymer buttstock with rubber recoil pad, a pistol grip, and a vented polymer handguard with accessory slots. It bottom-loads and ejects downward. A full-length top Picatinny rail is installed, and this example includes a polymer ladder rail cover.