pump actions are reliable but don't care any less about atmosphere than automatic actions, gas-blowback or recoil operated firearms produce their own gasses/forces (from the bullet propellant) and contain their own oxidizers (no need for atmosphere)

basically just get a power armor suit with a full-auto multipurpose flechette/microgrenade launcher mounted to one of the arms or your shoulder.

[–] Yurt_Owl@hexbear.net 6 points 2 years ago (2 children)

What about different gravity would that cause guns to fail? Americans go to the moon and don't even test any guns smh my head

[–] Abracadaniel@hexbear.net 8 points 2 years ago (1 children)

If a gun can fire upside down it can fire in a zero g environment.

[–] Yurt_Owl@hexbear.net 2 points 2 years ago

What if there's more g's, enough g so the firing system can't eject the shell or go back far enough

[–] LENINSGHOSTFACEKILLA@hexbear.net 5 points 2 years ago

a pump shotgun no, but potentially some gas operated systems? i'm not really sure how gravity/vacuum would affect any recoil operating system like that.