That is my next step. No recoil motor, it just activates the stock RX18 fire recoil. It will be a few days before I get to do anything with it though. I wish I knew more about the RX18. I have found that when it fires, pin 2 of CN3 has a pulse when I put a logic probe on it. If I try to hook a transistor or IC up to it as a trigger for a flash LED, it does the same thing, so I am thinking the RX18 is the issue.