most likely it is. marlin (glenfield is marlin) began using micro-grove technology in 1953.
1971
Most likely 1971.
Your serial number indicates that your Marlin model 60 was made in the year 1971.
Model 49, 1968-1971. The Model 49DL was made 1971-1978.
1971
The Golden 50 was made in 1971... The first two of the serial number indicate the year made... hope that helps!
Scott King - model - was born in 1971.
1971
1971
A good rifle.
1971
1971