Manufactured 1839 from a total production of only about 2,020. This is a later variation without the trapdoor in the bottom of the butt for the tools. It has the sliding bayonet/ramrod under the barrel and the large eye for the sling through the wrist. Standard "J.H. HALL/US/1839" marking on top of the breechblock. Fixed offset sights on the barrel and front of the receiver. Brown finished iron mountings and barrel, casehardened breech and mounted with a one piece straight grip walnut stock secured by two barrel bands and flat iron buttplate. These carbines were issued to the 2nd U.S. Dragoons for the Florida campaign. They saw extensive use and are seldom encountered in this condition.