12,501 of these rifles are estimated to have been manufactured by Remington during the Civil War for the Union. Government records listed them as "Harpers Ferry Pattern" rifles, and they have similarities to both the Model 1841 and Model 1855 rifles that were manufactured at Harpers Ferry prior to the Civil War but are a distinct pattern. The "Model 1863 Zouave" nickname is of unclear origins, and whether or not any of these rifles saw use in the war remains unclear and debated. This is a standard "1863" dated example and includes a spare nipple in the patch box.

Very fine overall with 75% plus original blue and 85% casehardened finish, some patches of discoloration along the barrel, minor oxidation, attractive aged patina on the furniture, dark oiled finish and crisp cartouches on the stock, and generally minor wear from handling and storage such as some small dents on the excellent stock, some light scratches overall. Mechanically excellent.