For anyone unfamiliar, barrel obstructions can be very dangerous as they can result in unsafe pressures when firing.
Here a soldier has put condoms on the ends of these machine gun barrels to prevent sand and dust from entering. Presumably before riding in a convoy along a dirt road.
So this is what they mean when they talk about keeping the safety on.
They brought protection
“wait… If that condom is here instead of the barrel cover… What did I put on my dick yesterday in the shower?! Shit… I need to make a phone call!”
It’s a time-honored tradition: https://medium.com/war-is-boring/the-combat-history-of-the-condom-46ad46a320df
Safety first!
They’re quite useful for a myriad of things. I’ve seen sound techs use them on body mic-packs to prevent actors from shorting the leads when they sweat.
Iirc I’ve also seen them as a cheap modification to turn a mic into an underwater mic.