For sale I have a KWA MP9R GBBR. 
This is rebranded Elite Force on the upper receiver but is 100% KWA. 
Has been fitted with a brand new hammer, and has the following WiiTech internals:

WiiTech Aluminium Nozzle 

WiiTech Aluminium Nozzle Chassis 

WiiTech Nozzle & Butt Pad Springs

Buyer can choose either a high or low power bolt group. Both bolts have the same WiiTech internals. 
Low power bolt firing at around 290fps on green

High power bolt firing at 340fps on 134a (green or higher gas will take this bolt over 350fps). 
 

Total package is:

KWA MP9R

High or Low power upgraded bolt (fitted)

2x leak free magazines 

MPX Metal QD silencer 

£250 posted