IIRC, that has a FRT (Forced Reset Trigger) the bolt forces the trigger off reset because the bolt closes. For those who maintain consistent force rearward to the trigger you will pull it once again and fire A different spherical while not having to have launched stress to the trigger. https://frt-trigger-for-sale01233.life3dblog.com/33038966/a-simple-key-for-frt-triggers-unveiled