After just taking a quick glance at them, it doesn't appear to be any different besides the electronics and the trigger. The KP+ isn't worth it over the KP IMO
The electronics add an autotrigger which is a feature that you will never be able to put on a regular KP and one of the reasons I decided to sell mine. You also get a better trigger feel since you'll be pulling a micro switch instead of a sear assembly. You get a larger hitman mod and on/off asa as well.
If you want any of those features then yeah, get the KP+ but if you can do without it then just pick up a regular KP.
