Deepfire aluminium cylinder set for G3 standard electric gun (bore up)

New improved set with aluminum piston head with ball bearing
hi exhaust cylinder head with double oring
POM nozzle with internal oring included
enlarged dimensions with greater air flow towards the bb
firing faster even without changing the spring
suitable with 285mm at 407mm

for Marui/LCT G3 Sas electric gun series and compatible