wtf
All Asian faces. First thought: HARNG?
(That is Hawaii Army National Guard, for the acronymically challenged)
What are the red circles highlighting ... no magazines?
Aha ... now I’m seeing it - I still don’t know fully what it means but this is a clearly staged photo-op with apparently #FakeNG
Just to clear things up... I think that the white markings in question are UID markings - Unique IDentifcation labels that are mounted to each weapon nowadays
(see attached article)
https://www.dvidshub.net/image/5977571/us-marines-display-marksmanship-skills-during-competition