Model 1817 common rifle

of Ordnance's order of 1814, produced by Henry Deringer and used from the 1820s to 1840s at the American frontier.

Unlike the half octagon barreled M1814 common rifle that preceded it, it had a barrel that was round for most of its length.

Like the M1814 common rifle, it had a large oval patch box in the stock, however the stock dropped steeper than on the M1814 common rifle.

The Harper's Ferry Arsenal produced a pattern weapon, which was then taken to gunsmiths to be copied.

[1] Over time the rifles became obsolete, but they still saw service during the American Civil War, originally flintlocks, most were converted to percussion cap for their firing mechanism.