Weapon upgrade question

[thecoffeeman03]

Does anyone know how much gold does it cost (roughly) to upgrade each weapon?

[D.A.N.]

Are we talking per weapon, or altogether?

To buy every weapon and fully upgrade the upgradeable ones, it costs around the range of 1.5 million gold.

[thecoffeeman03]

each weapon individually

[c17rrw]

The weakest weapons you probally wont even spend 75000 fully upgrading them but for the more powerful weapons you could spend up to 125000 fully upgrading them.