Winchester Model 12 Magnum Duck Gun 12 Gauge Pump-Action, 30 in Barrel, 3 in Chamber, Fixed Full Choke, Takedown
This Winchester Model 12 Magnum Duck Gun is a purpose-built 12 gauge waterfowling variant from the mid-1950s era, configured for 3-inch magnum loads and long-range work. It features a 30-inch plain Winchester Proof Steel barrel with a fixed Full (F) choke and a small front bead, plus the classic takedown system. The forged steel, blued receiver and corncob fore-end highlight the period-correct build, while the barrel legend "FOR SUPER SPEED & SUPER-X 3 IN." confirms the Magnum Duck specification.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Fouling: Mild Fouling - Light buildup of fouling or dirt.
Specific Condition Notes: There are scuffs, scratches, and finish wear from handling and use. The ventilated recoil pad is an aftermarket addition and is poorly fit to the buttstock. Note: The takedown assembly serial number (1632410) does not match the receiver serial number (1682410).
What's Included
- Winchester Model 12 Magnum Duck Gun 12 Gauge pump-action shotgun
Built for heavy 3-inch magnum shells, this Magnum Duck Gun is identified by its 30-inch plain (non-ribbed) Winchester Proof Steel barrel, fixed Full (F) choke, and the "FOR SUPER SPEED & SUPER-X 3 IN." barrel legend. The small front bead provides a straightforward sight picture suited to the model’s long-range waterfowling role.
The takedown configuration uses the Model 12’s receiver extension and takedown ring, allowing compact storage and maintenance. The magazine tube is secured to the barrel by a band/yoke near the muzzle, and the gun feeds and ejects on the right side with the proven internal-hammer pump action.
Walnut furniture includes a pistol-grip buttstock and a grooved corncob-style fore-end. A ventilated rubber recoil pad with a thin black spacer has been installed, and the length of pull measures 13.25 inches. Steel components wear a blued finish; the barrel is marked "MADE IN U.S.A., WINCHESTER PROOF STEEL."
Collectors will note period-correct details such as the forged/machined steel receiver and the absence of the Featherweight "F" suffix and later Y-series prefix in the serial format, consistent with mid-1950s catalog nomenclature for the Magnum Duck Gun. Capacity is 5 rounds, and the chamber is 3 inches.

