C&R · III · 162
Winchester Model 21 cut-away, S/N W21X
Section III: removed from the NFA, curio or relic under the GCA
Official wording
ATF P 5300.11 · APRIL 2025 EDITION · SECTION III · VERBATIM · PDF P. 45 ↗
Winchester, Model 21, cut-away shotgun, S/N W21X, with 12-inch barrel.
What this entry requires
- ATF REQUIRESConfigured as the ATF wording states: “with 12-inch barrel”
- ATF REQUIRESYour serial number is one ATF listsATF: “S/N W21X”
- INFOATF states no date; production was about 1931–1991.
Editorial facts · Our research
- Country
United StatesBasis: no citation - Manufacturer
- Winchester Repeating Arms Co.Basis: the ATF wording
- Type
- ShotgunBasis: the ATF wording
- Action
- OtherBasis: no citation
- Caliber
- Not statedBasis: the ATF wording
- Made
- Listed serial only · c. 1931–1991production; ATF states no dateBasis: outside reference ¹
- Service
- Commercial
Source
- Official wording
- ATF P 5300.11, April 2025 edition · Section III · PDF p. 45 ↗ · ATF original ↗
- Entries
- 1 line
- Verbatim check
- Checked against the PDF text before every release
- Editorial facts
- Confidence: Medium · Last revised 17 October 2026 (Data-trust review) · How we rate confidence
- References
- 1. Wikipedia, “Winchester Model 21” ↗, years: Model 21 made 1931–1959, then Custom Shop to 1991
- Fact tags
- ATF the ATF wording states it.
- REF ¹ an outside reference supports it; the number points to the list of references.
- ESTIMATE an approximate or indirect reading, for example the production range of the base model.
- NO CITATION we haven’t attached a reference for this fact; it’s our editorial reading, not ATF’s.
- Source checked
- 20 October 2026: ATF’s page still lists the April 2025 edition
- Corrections
- 1 change · see below
Correction history
- Data-trust reviewEditorial confidence: Low → Medium. Re-rated after supporting references were added or re-checked.
Historical context
NO VERIFIED IMAGE AVAILABLEWe show only freely licensed images verified to depict this model. None has been found yet.
Summary: Wikipedia, “Winchester Model 21”. Text CC BY-SA 4.0. Retrieved October 2026.
FROM WIKIPEDIA
The Winchester Model 21 is a deluxe side by side shotgun. The shotgun's initial production run from 1931 through 1959 yielded approximately 30,000 guns. Winchester Repeating Arms Company ceased the main production line of this shotgun in 1960 and the Model 21 was sourced to the Winchester Custom Shop until the gun's retirement in 1991. New Winchester Model 21 production continues under license to Connecticut Shotgun Manufacturing Company.