a&k sr25 hopup unit help??
 

im just wondering if anyone knows if there is an upgrade for the hopup unit??
i have the long mechbox.

thankyou in advance

and i would check myself but im not currently with the gun.

I may know someone who might possibly have one. Don't remember if it was for that specific model though, all I remember is that it was made by A&K (are you looking for OEM or aftermarket "upgrade"?). If you haven't found it by tomorrow I'll send you a PM if I've found something.

Isn't it a regular V2/M4 hop-up?

The point of the longer mechbox is to be able to use the normal hop-up...

I think even the custom-nozzled short mechbox uses a V2/M4 setup...

Actually... What Kosmos said would make sense. I thought there was something weird about the air nozzle that makes it specifically a lot longer and if you look on youtube the hop up unit looks exactly like a standard m4 hop.

PM'ed with some info.

I don't know this particular make...but the other setup of a short mechbox/long nozzle used a long nozzle, regular V2/M4 hopup and had a spacer inbetween the mechbox and the hopup. Why? Simply to position the hopup feed tube over the mag.