Mr Rogers was my Dad- my name is Pat.
Your question is interesting, but falls into the apples and oranges catagory.
I don't have one gun. Not all are set up exactly the same way. Technology evolves, and what i use evolves with time.
I also T&E a fair amount of gear- things change according to my schedule and priorities.
Having said that...
I use Colts or LMT only.
Sights are Aimpoint, Trijicon TA31F or S&B Short Dot- all with Larue Mounts
Forends are Larue, SF M73 or KAS RIS
Lights are M910, M600, MU or Larue Battlelight
I use VFG- all TangoDown
Sorry about not being more definite, but that what it is.