I'm at 3 presently (2 black, 1 FDE) and looking into a 4th after I pay off the Christmas bills (probably by 2022 LOL).
The FDE is basically standard with just an actual Inforce light (FDE older model). Black #1 has a Silver Back short compensator (or a Bison AK style flash suppressor for the "Mando" look) and a RMR using the AAP-01 mount with co-witness sights and I switch back and forth between a new model Inforce Wild 2 light and my TLR1. Black#2 has the collapsible stock with a Matrix 1X Micro Reflex Mini Red Dot and I switch back and forth between a short suppressor (just a tad longer than the inner barrel) and a 8 inch version of the same suppressor. I'd like to find a TM Micro Suppressor but I've not located any for sale in the USA.
My problem is that these pistols are just too easy (and fun) to attach a constant influx of accessories and are out-shooting some of my other pistols that I've used for a long time. I'm using .30 BB's as they match up with my bolt action scout/sniper rifle and I can still hit targets at a significant range.