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This Marlin manufactured recoil spring is for the model 99 M1 semi-auto rimfire rifle and is in very good condition with light wear. (file photo)
Note: Marlin model 99M1 semi-auto rimfire rifles with the following date codes and / or serial numbers have been observed with this part:
N.S.N. (IL) September 1968
1971: 71526077
1973: 27309096
1974: 26445526
