M1 carbine upgrades?

[dancma]

I just wanted to know if there were any upgrades for my marushin 8mm m1 carbine? I also wanted to know if I could use any other gas beside 134a?

Thanks

[the end]

i dont think so dude, and im not sure about gas maybe duster or even propane
but hey give it a shot and see what works

[Suspect187]

Originally Posted by dancma

I also wanted to know if I could use any other gas beside 134a?

Originally Posted by the end

and im not sure about gas maybe duster or even propane
but hey give it a shot and see what works

the end, what do you think duster is?

[Gish]

There are no performance upgrade parts for the M1. I've used Propane in my old one in the past however it put it too hot for field use.
I have seen scope mounts, scopes as really only the other external parts. If you really wanted to invest some time/money I have heard of people modding the folding paratrooper stock to fit the gun.