marushin m1 carbine (co2) upgrades? Inner barrels?

[terrorist one]

Hey folks, i got my hands on one of these for a Vietnam/OPFOR loadout.

Aside from the obvious upgrade to a real wood stock to replace the cheap wood it comes with, i am at a lost.

I am trying to make this gun more accurate but have no idea if any inner barrels out there are compatible.

Has anyone gotten around to upgrading anything on these guns aside from the external aspect of it?

thanks for your time.

sam

[hattrick]

There MIGHT be a TB available, other than that I've never heard of any upgrades.

A DIY upgraded hammer spring & recoil return spring would be doable.

Shy of replacing the trigger group with another stock one from a donor rifle.....ummm I haven't really slept....where was I going with this?


sorry - alex

[terrorist one]

I was thinking of simply ordering a longer Tight bore and machining it to be exactly like the stock one. For the hopup, i dont think there is much to do, its so fucking weird looking. There is for sure no replacements out there.