MARK II MK-512GCL (RUGER MODEL 0179)
.22 LR cal., 5 1/2 in. blue slabside barrel, gold anodized trigger, drilled and tapped for scope mounts (although rings were not provided with this model), smooth rosewood grips. Known SN range and additional SN's 225-51934 to 225-7216x, 22...