It is inspired by the Superman TV show, where the bullets bounce off superman's chest but he dodges the pistol that the bad guy throws when he's out of ammo.
The Walther Explosive Pistol.
Conceal 6
Ammo 2(b)
BF
4L
.5 Kg
250

Street Index 2, as no used ones are available.
The Walther Explosive Pistol is a single-use two-barrel burst-fire pistol. Both barrels fire when the trigger is pulled, raising the damage from 4L to 6L. In addition the timer in the hand-grip, which is expanded from the standard Walther in order to conceal the explosive parts of a grenade, is automatically initiated with the trigger pull. The Walther Explosive Pistol has a 2 second timer on the grenade, which may be adjusted out of combat with a Pistols B/R (3) Test with a base time of 4 minutes. The pistol may be ordered with Concussion (standard), or either the HE or AP, Offensive or Defensive options.
In standard usage, the pistol is typically fired (simple action) and then thrown (simple action).
If holstered with the safety off, the Walther can be Quick-Drawn and Fired as a simple action. Tests indicate that if a Free Action is used to drop the empty pistol, a subsequent Simple Action can Quick-Draw and Fire a second Walther.