The NPAS only adjusts the FPS from highest; bout 480 or so, to lowest at 150. There's a vid for this:
But what will increase FPS is the Rhino airsoft BOMBER speedbolt (note-added bonus of better ROF):
I have both and its a great combination. You can also get the NPAS with rod:
http://www.airsoftpost.com/product_info.ph...oducts_id=32247
Not sure if anyone has one, but is there a bb speedloader that works on the WETECH m4/scar mags. I've mostly been doing it by hand but would like a better solution.
Anyone got the rhino airsoft speed bolt added to their WE SCAR?
I'm thinking about getting this but I'm wondering if anyone else has this and if it is worth the investment for faster ROF.