gun shaped grenade

He forcefully pulled out an L-shaped handgun, but he did not stop here.
It did not simply slip from his fingers.
The handgun identical to the one in his right hand flew in a large parabola and fell
directly toward Kumokawa’s head.
An instant later, a tremendous shockwave scattered in every direction.
What had looked like a handgun had actually been a disguised grenade. Technically, the
bullets remaining in the magazine had all been detonated with an electrical current,
causing the handgun to burst from the inside and scatter sharp fragments everywhere.
It was deadly within a range of 3 meters and would injure anyone within 10 meters.

- New Testament Volume 7 Chapter 2 Part 10