Winchester Super-X Model 1 12 Gauge Semi-Auto, 28 in Vent Rib, 2 3/4 in Chamber, Walnut Stock
The Winchester Super-X Model 1 is a U.S.-made, gas-operated 12 gauge known as the first shotgun to carry the "Super-X" branding. This example follows the classic Field configuration with a 28-inch ventilated-rib barrel in Winchester Proof Steel, a fixed choke, and a 5+1 tubular magazine. Built in the 1970s–1980s era, it features the series-specific M-prefix serial format and Winchester’s premium, self-regulating gas system in a machined-steel design.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Specific Condition Notes: There are minor scratches, small dents, and scuffing present across the firearm. The bore exhibits minimal wear and remains clean with strong overall condition.
What's Included
- Winchester Super-X Model 1 12 Gauge semi-automatic shotgun
Winchester introduced the Super-X Model 1 in 1974, with production continuing into the early 1980s. It marked the first use of the "Super-X" name on a Winchester shotgun and was built around a premium, self-regulating gas system with extensive machined-steel construction.
This shotgun is the standard Field setup with a 28-inch ventilated-rib barrel and fixed choke. The barrel is Winchester Proof Steel and carries the WINCHESTER PROOF STEEL marking. It is chambered for 2 3/4-inch shells and uses a single front bead for a clean sight picture.
The tubular magazine provides a 5+1 capacity. Controls include a cross-bolt safety. The listed length of pull is 14.0, aligning with a traditional field fit.
The walnut stock features a pistol-grip profile, cut checkering, a ventilated recoil pad, and a white line spacer. Production for the series is estimated in the mid‑80,000 range, and the SX-1 line is known for its M-prefix serial format, both points of interest for buyers tracking model history and variations.