GunSerialsWinchester Super X Model 1 serial numbers — what the records say
The Winchester Super X Model 1 (SX-1) is a gas-operated semi-automatic shotgun produced from 1974 to approximately 1981.
- Produced:
- 1974–1981
- Action:
- semi-automatic
New to gun terms? Start here
- Model:
- The name of the gun design, such as Model 94. A model name that looks like a year does not tell you when your gun was made.
- Serial number:
- The number stamped on an individual gun. Include letters that are part of the number. A separate letter stamped above it, like the Model 97's C, D or E, is a different marking.
- Receiver:
- The main metal body just behind the barrel. The receiver ring is its front section, where the barrel joins it.
- Tang:
- A strip of metal extending from the receiver into the stock. The lower tang runs underneath, behind the trigger.
- Stock:
- The part you hold against your shoulder, usually made of wood on older Winchesters.
- Forearm or forend:
- The part under the barrel where your forward hand holds the gun.
- Action:
- The mechanism that loads and removes cartridges. Names such as lever action, pump action, and bolt action describe how it works.
- Caliber or gauge:
- The ammunition size or type a gun is designed to use. This marking is different from the model and serial number.
- Takedown:
- A version designed to separate into major sections for storage. A takedown joint is where those sections meet.
- Proof mark:
- A factory testing mark, such as Winchester's oval WP stamp. It is not a serial number or a date code.
- Peep or aperture sight:
- A rear sight with a small hole to look through. A hooded front sight has a cover around it.
Winchester Super X Model 1 value: what it sells for at auction
We found 11 single-gun auction sales of the Winchester Super X Model 1 at Poulin Auctions, Redding Auction Services, and Amoskeag Auction Company between Sep 2023 and Sep 2026. They sold for $393 to $1,028.
That is too few sales for a typical price, so we list each one instead. A price table needs at least 40 sales. With only a few sales, one gun in unusual condition can set the high or the low.
We leave out listings described as deluxe, special-order, engraved, restored, or commemorative, and other exceptions in the value guide. Wear, repairs, original parts, and factory upgrades can make a particular gun worth more or less. These sales are a comparison, not an appraisal of your gun.
Every Super X Model 1 sale we counted
Newest first. Each row names the auction company's age group for the gun. Their features and condition may differ from your gun. A lot number identifies an item in an auction.
| Sold | Gun | Auction company | Price |
|---|---|---|---|
| Jun 2026 | Modern · Super X Model 1 | Amoskeag lot 2070 | $665 |
| Apr 2026 | Modern · Super X Model 1 | Poulin lot 2028 | $518 |
| Oct 2025 | Curio & Relic · Super X Model 1 · 12 | Redding lot 423R | $625 |
| Jun 2025 | Modern · Super X Model 1 | Amoskeag lot 2181 | $574 |
| May 2025 | Modern · Super X Model 1 | Amoskeag lot 590 | $907 |
| May 2025 | Modern · Super X Model 1 · 12 | Redding lot 158R | $950 |
| Apr 2025 | Modern · Super X Model 1 | Poulin lot 2142 | $393 |
| Mar 2025 | Modern · Super X Model 1 | Amoskeag lot 2476 | $726 |
| Mar 2025 | Modern · Super X Model 1 | Amoskeag lot 2472 | $665 |
| Mar 2025 | Modern · Super X Model 1 | Amoskeag lot 1587 | $847 |
| Nov 2023 | Modern · Super X Model 1 | Amoskeag lot 2172 | $1,028 |
Prices are in US dollars and include the buyer’s premium, the auction company’s fee added to the winning bid, where the house charges one; Redding charges none. They are not the amount the seller receives. A dealer’s offer or private sale price may differ. The full picture, model by model →
Where the serial number is
On the receiver, with an M prefix on standard guns.
Where these dates come from
We do not have a reliable year-by-year serial table for the Winchester Super X Model 1. The notes below explain what the available references say about its numbers and production dates.
What to know about Super X Model 1 serial numbers
- There is no table that turns a Super X Model 1 serial number into a year. The Blue Book and the NRA Museum give only the prefixes, M for standard guns and IDU for the Ducks Unlimited edition. oldguns.net and Proofhouse give only the span 1974 to 1981.
- The Ducks Unlimited prefix is IDU, with a capital letter I, not the numeral 1. The 1976 Ducks Unlimited Gun of the Year is the one edition with a firm date, and 900 12-gauge guns were made. The Mississippi Flyway edition is marked on the receiver as one of 500. A separate MF prefix for it has not been confirmed.
- Made from 1974 to about 1981. Winchester's timeline introduces it in 1974. oldguns.net and Proofhouse run it to 1981, and American Rifleman notes it left the regular catalog in 1981. An XTR grade was listed separately in the 1981 catalog. Custom Shop trap and skeet guns were built to order into the early 1990s, which the Blue Book puts at 1987 to 1992. No production total has been published.
- Factory Trap guns came with either a regular or a Monte Carlo stock, so a Monte Carlo stock alone does not identify a Trap gun. Some engraved guns sold as Super Pigeon Grade may be later custom work.
Winchester shotguns usually made without serial numbers
These models usually have no serial number. Their pages explain the exceptions and how their features may help estimate age.
Factory record coverage for the Super X Model 1
The Super X Model 1 is not on the Cody Firearms Records Office’s May 2024 coverage sheet. Ask the office about current availability. The notes and sources on this page explain the other dating information we have.
Which Winchester models can be lettered, and what a letter shows →