Ok I did some research and I'm putting together a better gift for my wife. Is there a way to see modules you don't own? Is there a module for +Fire Rate and +Reload Speed? I'm trying to maximize ATK, fire rate, reload speed, and what they're calling "double hit" chance so she can get as many chances to poison people. If you install an additional poison attack from the module, does that stack with the one on the base gun, or is it redundant? I don't see anything change when I equip and unequip that module.

I read that Freyna's poison doesn't actually interact directly with with this gun though, and that her "venom" doesn't count as "poison" for the purposes of it's special ability.