Riptide

After taking the time to recover from both shock and awe, Mina took the bulky revolver Ned shown to him.

Unlike the flimsy and sleek silver revolver that Barbo was hiding, Ned's gun was rather rough and bulky. Its surface shows some cracks upon Mina's intricate look behind the lenses.

Still, the delight he was showing was far from being disappointed.

"This is the oldest version of Sling type gun the empire has created." Mina rotated the gun in his hands, trying to figure out how to open the box where the battery was placed.

Ned pushed the broken button just above Mina's thumb, and with a push, the hatch-like cover opened and showed a bulky hole inside.

By Sling type, Mina means that the energy must be reloaded every time the user fires the gun. Which was a delay but pack a lot of punch once shot.