Manufactured from 1875 to 1890. The top barrel flat is marked "E. REMINGTON & SONS. ILION. N.Y." behind of the rear sight, the lower left side of the receiver is marked with the six line patent dates, and the matching serial number is marked on the lower tang and the bottom barrel flat under the forearm. The caliber designation "40 50" is marked on the bottom barrel flat ahead of the forearm. Folding combination globe front sight, adjustable sporting rear sight and a short range tang mounted peep sight. Blue barrel, niter blue hammer and breech block, and casehardened remaining parts. Mounted with a smooth walnut forearm with iron forend and straight grip stock with a carbine style buttplate.