In 1847, approximately 3200 M1842 muskets were recorded as being modified, most likely for the Fremont Expedition. They have shorter 33 inch barrels and are 48 1/2 inches overall, with the bores being rifled and a long range rear sighted added, and the forward sling swivel being moved from the middle band to the upper band (nosecap).
In gleichem Schritt und Tritt, Curt Schmidt
Not a real Civil War reenactor, I only portray one on boards and fora.
I do not portray a Civil War soldier, I merely interpret one.