Uses angel threads. Too long, some modding required (easy)
Before I used this my marker was double feeding consistantly with the force fed hopper. It now requires more than just gravity to drop the ball into place the balls must be forced (#3/#4) into position. Note: I had to modify the length of the detent and adapter (easy). I am sure they will come up with the right length as time goes by.
Buy it. It works.
I have been dealing with Kila directly, very accomidating people. Easy to communicate with. I look forward to seeing more products from them.