Have a question. It's done it twice now, however not that often, but it does bother me. Once in a while in semi auto I will be firing, and when I stop firing and say change the selector to auto, then back to semi, the trigger will seize up as if it is in safe, yet its on semi. Anyone have any ideas why this is? When this happens, I have to release the mag, charge the handle, and then it can be shot again. Sometimes it happens when I don't even put it in auto then back to semi. Nothings broken, and it shoots great, just a little concerned that's all. Thanks for the help.