I have a Colt Defender that has never jammed and has been a great carry piece since its purchase. Recently my cousin and I were testing out his new high-speed camera on firearms. Trying to catch the action cycling and what-not. I fired at least 150rds through my defender: View attachment 14326 Most of the muzzle flashes looked like this: View attachment 14327 but on one a single round, this was the flash: View attachment 14328 I am worried that this means that the barrel is unlocking from the slide too early and the pressure is not dropping before it unlocks. I will say that whatever this was, it did not jam the gun and I did not even notice it until I reviewed the video at home. Am I worrying over nothing?