This is a futuristic pistol that's firmly grounded in reality, yet technologically highly advanced compared to what's available today. The Kreuweizer Mark IV Tactical Pistol might not look intimidating, but it is a weapon that could cause astounding damage. The rear magazine loading port holds four regular ammo magazines, each with twelve-round capacity, giving you forty-eight rounds before you need to change out magazines. The explosive ammo magazine loads on the bottom of the pistol grip, and also holds twelve rounds. The explosive ammos are specially designed micro nuclear warheads that can only be detonated after being fired from the gun. While the explosive round is in the chamber, the moment before it is propelled out the barrel, the firing mechanism injects a chemical catalyst which activates the micro nuclear warhead. This precaution guarantees the safety of the person firing the Kreuweizer Mark IV (of course, one must observe the minimum safe firing distance for an explosive projectile). For lighter damage, there is a less devastating explosive ammo type one could use as an alternative, when it's not possible to observing minimum safety distance. The wrist anchor is made out of firm rubber, and acts as a kick eliminator. It also helps support the extra weight from the four magazines loaded in the rear.

 

Here's are some sketches and the finished line drawing: