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Basic-Wedge · January 31st, 2012, 00:26

Once you have the NPAS valve for WE open bolt rifles (costs about $15), you simply disassemble the bolt, remove the valve-like device that ships with the rifle, and replace it with the NPAS. The NPAS simply drops right into place - there is no modification needed. Once you have it in place, you use the supplied tool to adjust the valve, until you get the desired velocity.

It's quite a bit easier to understand when you have everything in your hands.

I don't have a link for you, but there was a two part video I watched on YouTube that demonstrated the complete disassembly of a WE G39. Search for that, and the job of disassembling the bolt will be much easier.

January 31st, 2012, 00:26	#5
Basic-Wedge Trader rating Join Date: Mar 2010	Once you have the NPAS valve for WE open bolt rifles (costs about $15), you simply disassemble the bolt, remove the valve-like device that ships with the rifle, and replace it with the NPAS. The NPAS simply drops right into place - there is no modification needed. Once you have it in place, you use the supplied tool to adjust the valve, until you get the desired velocity. It's quite a bit easier to understand when you have everything in your hands. I don't have a link for you, but there was a two part video I watched on YouTube that demonstrated the complete disassembly of a WE G39. Search for that, and the job of disassembling the bolt will be much easier. __________________ * * * * * * * * * Rob Bye