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Semi-auto shotguns

Winchester SX3

Winchester SX3 — documented specs: caliber 12/76 · 20/76, barrel length 660–711 mm (25.98–27.99 in), overall length 1,187–1,238 mm (46.73–48.74 in), capacity 4 (SX3 Field, 2¾″ shells). The source for each figure is listed below the specs (catalog as of 10/16/2026).

Category
Semi-auto shotguns
Classification (DE)
Long firearm
Era
Present (from 1991)
Origin
United States
Calibers
12/76 · 20/76

Derived from design and catalog dimensions under the German WaffG, Annex 1 Sec. 1 Subsec. 1 No. 2.5; the individual gun is what counts.

Also known as: Super X3 · Winchester Super X3

Specifications

Sights
Ventilated rib
Barrel length
660–711 mm (25.98–27.99 in)Depending on variant · varies by model
Overall length
1,187–1,238 mm (46.73–48.74 in)Depending on variant · varies by barrel length
Capacity
4 · SX3 Field, 2¾″ shellstubular magazine

Sources

Specifications come from the source cited alongside them; counts are based on our catalog as of the date stated. Not legal advice: what follows from these figures in a given country is decided by that country’s law. Waffenschrank is not affiliated with the manufacturers named.

Other models in 12/76

Models from other manufacturers in the same caliber, drawn from the catalog in no particular order — not a recommendation and not a comparison of specs.

Related

Catalog as of