[Basic-Wedge]

I'm still trying to get my G39's velocity under control. Every other aspect of the rifle's performance is fine, but it's still too hot for use in games.

With the NPAS valve (turned three full turns CW) to wide open, velocity with .25 BBs is a smokin' 433 fps. Closing the valve (turning it CCW until it seats), and theoretically choking off the gas flow completely, only reduces velocity to 429 fps. It's like the NPAS valve has absolutely zero effect on the rifle's function.

I'm so confused...

Most other users report their guns have lower velocity, even with the NPAS valve set wide open, and they have to modify their nozzles by cutting down the two plastic lugs inside the rear portion of the nozzle. My gun seems to be the opposite.

Initially, I thought filing down the two lugs lead to reduced velocities, so I did that in my gun too. Now I'm thinking I should've left them alone. I see where some users instead remove the lugs completely and file notches across the top of the rear nozzle. If I've made a mistake by shortening my lugs, I can probably recover from that mistake by cutting notches into the rear nozzle.

Anyway, I hope that seems understandable. If you've ever torn down a G39, you can probably visualize what I'm dealing with. I'd just like to know if other users have had to overcome a similar issue.

Just as an added thought: On WE's website, they now list a "Canada Only" version of the G39, with velocity rated at 430+ fps (to get around Canadian importation requirements, I'd imagine). Also, Evike in the U.S. advertises a special high velocity version of the G39 (500 fps). I'm wondering if my rifle isn't like those two versions, and therefore producing greater velocity than models previously sold in Canada. If that's the case, I may have to install a different nozzle in order to get my fps down to safe levels.