The extended slide takedown pin was in backwards First off let me list the mods done to the gun Lightning Strike guide rod, extended mag release, 3.5LB connector #4 striker spring, clipdraw. Extended slidestop, and extended slide takedown pin. Obviously you shouldn't be jerking your wrist like this but i was practicing drawing and quick point shooting and the slide flew off and landed and banged up the front sight. What is going wrong? should it be doing this, is something put together wrong? Could this occur if the gun was being shot? Video http://www.youtube.com/watch?v=wXLndDa96j4 Video may still be processing give it a few min.