Key details include bore condition (shiny with strong rifling), matching numbers on major components, intact stock with cartouches, and a solid blue or parkerized finish with only normal handling wear. Descriptions that note a functioning action, intact bayonet, and original accessories like slings or pouches are all positive signs for collectors and shooters. For more information, visit Collectorsfirearms.com/196505-russian-tula-sks-rifle-762x39-r41549.html.