
Originally Posted by
Shogo_Yahagi
I haven't maxed out any of my weapons yet, but my understanding is that they've changed that since the beta. During the beta, they talked about adding a reset option but I think they just let it continue gaining xp instead. Several people have posted that they have leveled up a weapon class while using a maxed-out weapon.
That is to say, once the weapon is maxed out, you no longer get better with that specific weapon, but you continue to get better with that class of weapons (which will, in turn, improve your base ability with that specific weapon).