SACair Forum

I have a old crappy sportline that I have not upgraded yet and I really need to. What are some upgrades that will make it from a old sportline to be running like one of the newer Classic Army X series.

Well the absolute basics (at least what i replace when i upgrade guns) is usually the bushings w/ metal ones, same with the spring guide, perhaps a ball bearing spring guide, polycarb piston with metal teeth, polycarb ported piston head, m110 or m120 spring, re shim/grease the gearbox, maybe a high torque motor.

depends on what you want to do with the gun. High FPS or High ROF.

[quote="24JTS07"]I have a old crappy sportline that I have not upgraded yet and I really need to. What are some upgrades that will make it from a old sportline to be running like one of the newer Classic Army X series.[/quote]

No more then 125-150

well if you're doing all itnernal stuff, i'd go for: