Air gun, not a firearm. This is a modern air- or CO2-powered replica; the history below is about the original firearm it is modeled on.
The Winchester Model 1866 — the Yellow Boy, for its gleaming brass receiver — was the first rifle to carry the Winchester name: the Civil War Henry improved with a wooden forearm and Nelson King's loading gate, which together turned a fragile war rifle into the frontier's first practical repeater. It armed settlers, Native warriors, and foreign armies from the Bozeman Trail to the Ottoman trenches at Plevna, and it founded the lever-action dynasty that followed.
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