NO IT"S NOT - How many times I must explain that acoding to your beloved Arjun draw whit mesure on it we can check bar holder lenght - 520mm and konwing this value we can mesure how thick is place after main sight and BEFORE roof vision block
520mm for bar holder lenght
Here is clearly visible distance and mesure using those bar holder lenght:
Your "It is at least 550 mm behind the back wall of the (dog house) main sight" is not 550 but
circa 315mm acoding to the bar holder lenght and accoding to this only trully draw whit Arjun. Sory, you write again false statsment. So whole rest of your "mesurment" is worth nothing.
It's worth crap to be onest.
No it's not - you even can't put it in correct place:
first - it's takes only 500mm for whole "doghouse" deep (thicknes)
second - you placed it completly wrong on picture! Front of the main sight is started AFTER whole gun mantled mask thickenss, and you mark it on one line whit gun mantled mask. What is stupid over imagination couse on all photos is viisble that front of the main sight is started after gun mantled mask. I marked it porperly here:
using those bar holder as mesurment point. You can do this on photo even without known real dimension of those bar holder - just using scale how many "bar holder lenght" distance in necessary to place main sight, vision block, atc. I do this too on picture above.
Result is showing how completly stupid is your draw. Sorry - you again have no right here.
Just this two error in your "mesurment" give one result - you "mesurment" are pointles and wrong couse you can't put correct "doghouse" and you are unable to mesure distance between end of the doghouse and roof vision blokc. In other words - you mesuments are crappy.