Narrow Trigger Guard - 1959 and earlier (can't see it in your pic but there should be philips screws holding the trigger guard instead of rivets) Rear Sight - sight held by small allen-head screw opposing two dimples on opposite side : 1956 - 1971 (earlier models featured permanently soldered rear sights with knurled windage knobs)Īutomatic Safety - Pre 1963 when rocker was introduced. Straight bolt handle - Earliest C models up to 1961 when bolt handles became curved : 1949 -1960 Here are some known facts as they pertain to your rifle:
Until 1956, the rear sight was soldered with the first year knurled windage adustmentsġ960 5 M/M Cal & Made in USA added to pump tubeġ961 saw evolution of the bolt from straight to curved to pear shaped with hole (eventually removed 1975)ġ963 with a switch from the hold down safety to the rocker safetyġ964 changed the front sight to a forward ramp style.ġ964 Inspection dates were stamped on left side of receiver (Backwards and alphabetically) My Silver Streak manufactured between 1956 1958 hope this helps.