The Winchester Model 21 is a double-barreled shotgun produced by the Winchester Repeating Arms Company from 1931 to 1963. Known for its craftsmanship and durability, it features a side-by-side configuration and is often praised for its balance and handling. The Model 21 was designed for both hunting and sport shooting, making it a popular choice among enthusiasts. This shotgun is notable for its robust construction, including a strong frame and high-quality materials. The Model 21 was available in various gauges, including 12, 16, and 20, and it remains a sought-after collectible today due to its historical significance and performance.