Description Ruger MK I chambered in .22 long rifle with three, nine round removable magazines and a 4 3/4″ barrel. Two of the magazines have Ruger base plates and the third has a silver base plate. Manufactured in 1982 with serial number 17-56330. Blued steel frame with heel magazine release and checkered polymer grips. Serrated polished trigger. Frame mounted manual thumb safety. Blued barrel, upper, and serrated bolt charging ears. Fixed rear notch and front blade iron sights. Must ship to a FFL holder. Condition: Very Good with light scratches and cosmetic handling wear. Light internal operational wear. Bright and clean bore with strong rifling. Barrel Length: 4 3/4″ Serial: 17-56330 Manufacturer: RUGER Year: 1982 Caliber: .22 Long Rifle Model: MK I Book# 07381