Hoshino's favorite gun with a simple design.
Basically, she wants to be lazy, but she never refuses to maintain her weapons.

Wakamo's favorite weapon.
The barrel of the rifle, like Wakamo's joyful mood as summer approaches, emits bright crimson sparks towards anyone who gets in its way.

A short-barreled grenade launcher used by Sena.
A tool used to quickly clear obstacles when dispatching emergency services. Obstacles include anything that gets in the way of your work.

Wakamo's favorite rifle from Blue Archive.
Despite her old-fashioned appearance, she always smells of fire and gunpowder. Currently, it is often used to shoot at “obstacles” in the teacher’s vicinity.

Hasumi's favorite sniper rifle from Blue Archive.
Smooth appearance with some old-fashioned good nature and, despite this, quite ferocious power - all this makes it similar to its owner.

A gun from the Blue Archive, used by Haruka to exterminate pests.
The definition of “pest” appears to vary on a case-by-case basis.