[HELP] Identifying weapon parts

Hello there fellow vault hunter! I have a doubt. When I identify a weapon, at the left side there are in every part a ‘’?’’, is it normal? I can’t really see which part is that?
At the moment I’m only sure what alien barrils are hahaha

I am not even looking at parts, haha! :stuck_out_tongue:
How does it helps exactly? :open_mouth: