Winchester Model 21 is a deluxe side-by-side shotgun produced by the Winchester Repeating Arms Company. Model 21 was first produced from 1931 to 1959, with approximately 30,000 units made during this period. After the main production line ceased in 1960, the Model 21 continued to be produced by the Winchester Custom Shop until 1991.
It features a break-action design, which is typical for high-quality double-barrel shotguns. was available in 12, 16, 20, 28 gauge, and .410 bore
