Congrats! on your new FNX-45 TacticalHi All - I am new to the world of RMRs. I just ordered an FNX 45 Tactical.
Is there a compatibility list for the FNX 45 Tactical?
FNX™ Owner’s Manual – 2016
21. page 42
Two mounting plates are included to fit Trijicon® or Docter® red dot electronic sights