G&G MP5 Problem

[HaloSix4]

Alright so I am working on my buddies gun, for some risen it is only getting about 160 FPS, the gearbox had alot of shots so he decided to replace it, but even with a brand new matchbox, it still only gets 160 FPS, I have done everything i know, there seem to be no air-leaks, no hop-up rips, it just does not want to go over 160 even though it was shooting 30 for a long time. I'm on me Blackberry right now so its hard to explain the full problem but any help would be appreciated.

Thanks

[audi_bhoy]

Did you try another chrony? what weight of BB's are you using? Did you clean the barrel properly?

[Styrak]

Do you have the proper MP5 nozzle on the gearbox?
Perhaps it's an M4 nozzle something?

[HaloSix4]

Ya everything that is MP5 proprietary has been switched to the new box, but I figured it out, the stock nozzle had a very fine crack, so when air passed by it opened the crack and was not getting behind the BB, just through in an Old Mp5 one and it works perfect. Its always a simple problem lol.

[Styrak]

So....I called it? Sort of.

[Slow]

G&G Mp5 need to have there pistons replace ASAP. This is one major glitch that comes with these guns.
Glad to hear you fixed the problem

[VooDooPeteK]

Originally Posted by Slow

G&G Mp5 need to have there pistons replace ASAP. This is one major glitch that comes with these guns.
Glad to hear you fixed the problem

Not so much the piston as the piston head but yea they aren't the best

[audi_bhoy]

I give you the point on this one, even though it wasn't exactly what you called, you named the good part and that's worth 1 point

Originally Posted by Styrak

So....I called it? Sort of.