This Marlin manufactured carrier rocker screw is for the model 39A and 39-A lever action rifle in 22 rimfire caliber and is in very good condition with light slot wear. (file photos)
Note: Marlin model 39A & 39-A lever action rimfire rifles in 22 caliber with the following years of manufacture and serial numbers have beeen observed with this part:
Marked 39-A: (1947) D7845
Marked 39A: (1951) H24038
