I present the RVT-DU2-8.
This is a personnel carried assault weapon, to be held along with assault rifles and my personal MM4 minigun.
This gun has an eight round clip. Why so little? because rather than simple lead, this gun fires-wait for it-two pound depleted uranium rounds. This is to be used when attacking or being attacked by an armored vehicle, or perhaps many. It's able to penetrate the armor of an M1-A1 main battle tank and set the inside on fire, thanks to it's solid magnesium core. The effective range is around a mile. The question many people have is: how can a person hold such power in their arms without being sent backwards?
The answer lies with it's Vector Redirection Drives, or VRDs, that send 80% of all energy generated by this in the direction of the barrel, so it actually makes the bullet faster. The other 20% is mostly used in the reloading process.
As an added bonus, it comes with a Glock 26 extended magazine for when you just aren't happy enough with saving your entire platoon, and need to kick more ass.