MYOT Power Regulate Adjust Wheel Ring for Airforce CO2 Condor SS Talon Digit Show

I ordered this adjuster for a DYI AirForce precharged pneumatic airgun project. True I could have made the part, but I figured while I was ordering the receiver and having to wait for it to arrive from China, I may as well order this part from the same seller at the same time. The machine work on this part is very well done, all the parts fit precisely and work smoothly as it should be. The parts are hard anodized, not simply painted and this part has deep knurling instead of the fine serrations (like the stock part) which in testing seems to offer better grip and adjust easier. The only caveat however is, IF you order this part intending to use it in a STOCK AirForce airgun frame, the 'indicating screw' that actually keeps the part from spinning inside the receiver is metric. It appears to be a stainless steel 4mm cap head screw that will not fit the stock frame. Everything else fits perfectly, just the head of the screw is too big. The stock AF part utilizes a plastic 4-40 cap head screw. SO, this very well made part WILL work with a stock frame if you simply drill and tap it 4-40 hole somewhere else around the adjuster, or maybe try a 4mm screw with a smaller head. Either way a simple fix.