Can anyone give you any info on a model 99m1cal 22lr?
The 99m1 was built from 1964-78. It was built to resemble the original M1 Carbine, as used in WWII. The 99M1 is the same gun as the Marlin 989 or 99C, so parts interchange with them. Answer The 989M2 is the clip-style magazine, as opposed to the tube style found on the M1 :)