Pumpkin

Roman Artillery: Pumpkin is an offensive gun-type Teigu. It has a case with different parts in it, which can be detached and attached to modify Pumpkin. It is currently wielded by Mine and was formerly used by Najenda.

Abilities
It can gather spirit energy and fire it in a concentrated shockwave. One of its main properties is that its power and range increase in proportion to the level of danger its user is in. It's capable of rapid-fire burst shots of spirit energy and has detachable high tech scouter in a compartment that fits around the user's eye. It also has a scope for sniping. It has multiple parts that can be used to modify its power.

Its trump card is a blasting beam so overwhelming that it can act like a giant blade, cutting anything in its path. This power is unleashed according to how passionate the emotions of its user are, but it overheats Pumpkin, rendering it unusable for a while.

Trivia

 * In the omake segments Akame ga Kill! Theater Pumpkin is portrayed with a literal pumpkin attached to its barrel.