Galaxy MP5K piston/cylinder up

[Flea-ish]

I'm seriously considering an upgrade to my MP5k, specifically i'd like to get the cylinder and piston upgraded, because the compression sucks. I might like to get a new nozzle as well, but i dont think it's a need (or even a want, really).

Now, how do i know what kind of parts to buy? full teeth or half teeth, polycarbonate or some weird space-age shit made out of the scrapings of UFO crashes. These things i don't know.

do you?

[Styrak]

If you're getting bad compression, it might be that you only have to stretch the piston head o-ring, or get a new piston head. Actual cylinders are pretty standard, just a tube of metal. Unless it's inner diameter is way off-spec or something.

Either way a ported piston head would solve your problems most likely.

[Flea-ish]

how do you choose piston heads for a gun? are they all pretty much standard?

[Skladfin]

systema silent piston/cylinder head for v3 mechbox

[Styrak]

Originally Posted by Flea-ish

how do you choose piston heads for a gun? are they all pretty much standard?

Yes, all piston heads are standard size, except for bore-up ones. And they'll say explicitly that they are, and are usually sold in cylinder/cylinder head/piston head kits.

I'd say go for a non-metal, ported piston head. I'd recommend Modify, Prometheus, Action, Guarder, Systema are all good names.

If you want to spend a little more, you could buy a kit like this:

http://cgi.ebay.com/Systema-N-B-CYLI...742.m153.l1262