i just bought a chinese sks at a show. PERFECT condition all around. i would guess it has never seen any sort of service...all matching serials too. i was reading an article about a "paratrooper" model of the sks.....the article was not terribly informative. the only detail i remembered was that supposedly these weapons have the sling side-mounted, which mine indeed does. if then this is a "paratrooper" model, is there anything else that distinguishes it from standard models?