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Matrix CNC Adjustable NPAS Tool Set for WA / King Arms / G&P / Inokatsu Airsoft M4 GBB Series

2 Customer Reviews

by Mateusz Z. on 08/10/2016
"Works as intended. Thank you.
by Josh M. on 04/09/2015
"I got mine from a different site, but I'm willing to share my opinion since it's the same item. You may ask yourself "why do I need this?" this specific part in mine cracked, which left a chunk of it missing, so I bought this to solve the problem. The whole unit (except the part that you adjust) is made of steel, the part you adjust is made of what feels like plastic. I also do not recommend the stock spring that the flute valve sits on with this, as when I tried to shoot and the flute valve bounces out of place. As for adjustment, it works just fine, however with my model the pin that holds the piece on the back was a bit too small, so I had to redrill with a bigger hole and use my own pin, easy fix. I wish they would've included RA-tech's universal tool that can be used without taking the bolt out to adjust the FPS...

Steel, won't break anytime soon.
easy adjustment of FPS

self modification required
have to strip the gun each time you want to adjust the FPS