Equip Guns
Is either 銃装備可能 [juu soubi kanou] ('gun equip possible') or simply 銃装備 [juu soubi] ('gun equip') in Japanese.
Final Fantasy Tactics
Type: Support Ability
Learn: Orator (800 JP)
Effect: Enables you to equip Guns
Other: 銃装備可能 in Japanese
Explorers
Type: Default Ability
Learn: Machinist, Alchemist, Black Mage (Master), Geomancer (Master)
Description: Can equip guns
Other: 銃装備 in Japanese
Category: Ability