Some weapons dont appear when i go to edit my loadout

[primal bramble]

There are some guns in my loadout that i havent bought.Prob a modder gave them to me but when i go to edit my loadout in my armory they arent there.The navy revolver also does not appear. Is there a way to fix that?

[wild bison]

What guns are they ?

They may have glitched in from a mission