Uh, well this wouldn't work for a variety of reasons including:
The RPD don't use AK47s
We would make our own AK if we wanted one
There are already 2 guns which function in basically the same way (M4 and MP5 and adding an AK would make it even more repetetive)
It is not amusing even if the guns from China, East Europe, etc. are sold at the gun shop, if the gun control of a Racooncity is not amusing.