What I added internally:
-full cylinder
-reinforced gear set
-better shimming
-dean's connector
-mosfet (never needed/used one before, so this is a big maybe)
-New hopup unit with bucking (maybe systema hopup) (put off for lateR)
-TBB 6.03mm most likely.
What I added externally:
-RIS
-Cranestock
-Magpul pistol grip or 416 style pistol grip (put off for later)
-Snake skin paint job.
I am going for a SOF m4 look.
As this project continues I will post updated photos, please tell me what you guys think, and tell me if there is anything that i should add internally or externally. I'm really excited for this
Picture of the starting base build.

Picture of the end result so far:

I have to reshim the gearbox unfortunately because i reshimmed it very poorly so everything is grinding inside, luckily i found a neat guide with which to use.
also the gun wasn't not firing at all due to the fact there was no fuse nor fuse box for the tamiya connection (strange eh?) i fixed that problem when adding the deans connector.
what do you guys think? anything i should add?