It is pretty easy...

How to Install Tango Down G43 Baseplates

While the packaging states a bold Warning that the Vickers Tactical Glock 43 +2 Floor Plates, by Tango Down, should only be installed by a Professional Gunsmith…    …I will show you how to do it yourself.  It is frankly pretty easy.

You can pick up some of the +2 G43 Floor Plates.

You can check out my Review of these Floor Plates here.

It is a pretty bold warning. I assume Tango Down was tired of idiots messing it up and calling them…