Quote:
Originally Posted by Basic-Wedge
My G39 is packed away for the winter, so measuring the prongs isn't practical at the moment.
For guns intended for sale in the Canadian market, the prongs look similar to the image on the right. I would guess that's a little over 1mm. The rubber O-ring I used is the same size as the one used in a WE BB loader (when you disassemble the loader, you'll find the O-ring in the base). To accomplish my modification, you'd simply lay an O-ring flat across the top of the two prongs and reassemble the bolt.
If you have a standard style bolt and an NPAS valve, I would recommend you alter your fps by opening the NPAS valve, rather than filing down the prongs. Because of the short prongs in my bolt, I have to leave my NPAS valve closed at all times, just to keep the rifle within safe field limits.
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Thanks basic. When u get the chance, could you measure it up for me. (distance from the o-ring to the edge/base of the prong and the length of the prong itself.) ps: i'm not talking about the o-ring u put to "tamed" down ur g39, instead i'm talking about the o-ring that actualy there on the back part of the nozzle, u can see it on my previous photo.
As for the npas, i believe fully closed position is where u get the highest fps, while fully open is when u get the lowest fps. And npas cannot increase ur FPS, the modification of the nozzle will. CMIIW
Thanks again people....cheers