This is a rare example of a U.S. Harpers Ferry Model 1842 Hall saddle ring carbine, one of approximately 1,001 manufactured c. 1842-1843, and the last carbine manufactured by Harpers Ferry. These were all sent to the 1st U.S. Dragoons and saw hard use in the western campaigns of the Mexican-American War, contributing to their extreme scarcity today. The 1st Dragoons were part of the Army of the West (1846), commanded by Stephen W. Kearny, which played a prominent role in the conquest of New Mexico and California. This example retains its original smoothbore and features a brass blade front sight and iron V notch rear sight. Brass barrel bands, trigger guard, and buttplate. Inspector initials "P.M." marked on the right of the breech, "H. FERRY/US/1842" marked on top of the breech block, "M" stamped behind the lower tang, and "16" stamped on top ahead of the buttplate.

Good, exhibiting smooth gray and brown patina with scattered mild pitting concentrated mostly on the barrel, evident of genuine period use, bright golden patina on the brass fittings, and defined markings on the breech block. Hammer has been repaired during period of usage. The stock is also good with some scattered light scratches and dents, and a few chips. Mechanically excellent.