VS Internal Parts( Highly recommand )
 

VS is an unkonwn brand to most of the airsoft players outside china. And the fact is VS is the leading brand of internal parts in mainland china. The quality is high and the price is very acceptable.

http://www.dragonredairsoft.com/airs...ages/vs120.jpg

I Command you!

In fact, stay that order, for I recommand you!

Looks nice. But.. what's that little baggy? Looks like it's a sheet of lsd :p

I think its grease haha or china's way to smuggle LSD into the country LoL

How much would one of those tuned sets cost?

I heard of piston head with double O-ring. Is this the one?

CND48 + shipping(10)

No, the seond o-ring is just a spare.

Would've tried a set if the post had gone up a couple days earlier.

What is the spring type. (approx) I am looking to upgrade my p90 to around (preferably just under) 400fps and wondering if this would work as it would be cheaper than a FTK by systema.

M120, around 395FPS. It works and works very well. That's why I recommand it. There were people in US bought one and came back to boought another one.

Hmm, crap I realized it wont work for a p90 as they have funny brushings. Oh well will pass this on to a couple of my friends that might be looking to upgrade.

Crap, I thought you had a M4. Those are for M4.