It would be nice to see a nail gun added for multiple purposes.
First usage could be for a civilian weapon and it usages nails as ammo.
And perhaps you also maybe need a battery to have it actually work.
Second usage could be when you implement barricading into the game, it could be used to put wooden planks on windows and doors, an alternative way of barricading could be with hammer and nails if you dont have a nail gun.