If you would look at the Ruger MKI and the MKII, you might not immediately see the difference. Ruger is already one of the most recognized names when it comes to firearms. MKI is known to be one of the successful pistol lines. In order to improve this pistol further, the Ruger MKII was introduced to the public.
There are new features that are available for the MKII that the MKI did not have. One difference is the increase in magazine capacity from 9 that s being offered by the MKI to 10 that is being offered by the MKII. Another upgrade from the MKI is the more barrel options that are available in the MKII.