E. Remington & Sons purchased machinery and a U.S. Navy contract for 1,000 Jenks carbines with Maynard tape primers from Ames Manufacturing Company and manufactured these carbines circa 1847-1848. The distinguishing features of the Jenks-Remington include the Maynard tape primer and the "REMINGTON'S/HERKIMER/N.Y." marking on the lock plate. Marked "3/44" on the underside of the breech lever, "211" underneath the tape primer cover, "W. JENKS" parallel to the bore on the barrel at the breech followed by "U.S.N./RP/P/1847/CAST-STEEL" perpendicular to the bore ahead of the oval loading port, and some small "P" marks on a few of the components. The oval loading opening found on many of these carbines was an alteration of the earlier round opening and was designed to facilitate the use of paper cartridge rather than loose balls and powder. The bore was also rifled at this time. Boxed script "RP" (Richard Paine) cartouche on the left of the stock opposite the lock. The Jenks is unique in that it is the only side hammer weapon officially used by the U.S. military. Other features include the integral blade front sight on the foremost of the two brass barrel bands, the integral notch sight on the top of the lever, brass trigger guard with saddle ring, and the brass buttplate.