KSC Glock Valve measurement
 

I’m thinking about customizing the stock valve on my G23F. I’m wondering if anyone can supply me with the measurements/diameter of the holes off an upgraded valve for this unit.

I've tried this before and for some reason, it doesn't work. At most, you get an 8fps boost.

Whereas with a valve like the KM TN valves, you can see 30 to 60fps boosts.

I haven't looked too much into how they do it... I just know it works. :P

I think it has to do with raised striking faces (for earlier/prolonged impact), thinner valve stems (less restriction), and thinner valve bottoms (again, less restriction.)