When you had it disassembled, did you check to see if there was a burr/machine chatter in either the mag release tunnel or on the mag release itself?The mag release was sticking when the lower had no magazine inserted also. I used non chlorinated brake cleaner and cleaned the area out good. This made it worse but it was clean. I then added a couple drops of dry lube to the mag release mechanism and its popping out hard every time. I will keep a close eye on it. Thank you all.
I'll have to get mine out but in that video the button is moving fine, it's the spring on that lever inside that ( I bet ) is missing or binding.
Well the invoice just says refit the magazine release spring then safety tested it and shipped it back. Im terrified that if another drop of oil gets near the magazine release spring or if its cold that it will just keep happening. Sadly if it happens again Ill ship it back and ditch it. Never had a firearm do this ever.So what did they do?