Can't equip an army rifle (Rise of the Tomb Raider)

Spoiler

it happened so. but the barrel was put serovno. or you just did not reach the plot when they give the machine gun.
PS Litsuha.

koles2015
So I can buy and upgrade the machine, but not use it? Okay thank you.

BlackTea
yes

you are on the plot when you get to the place where she appears, then there will be a norm, I had the same thing with a pistol