Russian SKS rifles, particularly those produced at the Tula Arsenal in the 1950s, are valued for their early Cold War history, quality of manufacture, and classic 7.62×39mm chambering. Collectors look for original configuration rifles with matching serial numbers, correct arsenal markings, and factory features like the folding bayonet. For more information, visit Collectorsfirearms.com/196505-russian-tula-sks-rifle-762x39-r41549.html.