These saddle ring carbines remained part of the lineup until 1902, with most having a 20.5" barrel. Argentine variants are marked identically, having Knoxform chamber as well. Some factory carbines have both saddle ring and sling swivels. An especially rare factory carbine is those with a full-length, two-band forearm (150% should be added to their prices). Single carbine barrel band with two-position 100-, 300- and 500-yard sight. Locally applied markings such as a Crown over RV (Regiment of Volunteers) on Spanish/Cuban versions will add 10% to 20%, depending on the condition. Noteworthy is that RV-marked Cuban carbines are usually re-chambered to the improved .43 Reformado cartridge, which is interchangeable with the Spanish Remington cartridge.