Clean gearbox
QD spring guide
Torx screws
Optical ETU
Good tappet plate design
Strong and smooth cylinder
Solid inner barrel depth
Fixed nub
Clear hop adjustment feedback
Sintered gears
Weak motor
Nozzle does not have O-ring and wobbles
Piston without full steel rack
Oil in bucking and inner barrel
No mechanical safety
+/- Dedicated ETU
+/- Dedicated hop up
+/- Mixed bearing and bushing