Description First production run Smith & Wesson model 66 chambered in .357 magnum with a six-shot cylinder and a 4″ barrel. Target K frame revolver with stainless barrel, frame, cylinder, checkered cylinder release, hammer, and ribbed trigger. Checkered Pachmayr “Gripper” rubber grips with finger groves. Stainless steel rear target sight and front fixed blade. Comes in its factory box with owners manual. Must ship to FFL holder. Condition: Very Good/Excellent with light wear from handling and use. Light turn line on the cylinder. Clean bore with strong rifling. Barrel Length: 4″ Serial: 4K64322 Manufacturer: SMITH & WESSON Year: 1974 Caliber: .357 Magnum Model: 66 No Dash Book# 9-319