Just a small note for the MecGar +2 baseplates:
Before the craze for these baseplates, I purchased a Shadowline back in 2014 and in the case were these baseplates that clearly did not fit the factory 1/4 plastic mags. Thought nothing of it and left them in the case and haven't opened it for years. I was doing some clean up and opened the case and to my surprise, those extra baseplates were the MecGar +2 baseplates everyone has been after. This was after I purchased a bunch from Marstar so now I have a couple spares.
So take a look and see if you have a couple still in the factory pistol case.