I bought a brand new MK IV lite a few months back , got my suppressor in and went to shoot my new set up.... My brand new out of box MK IV will not come off of safe. dealer says he cant tae it back cause I pushed the take down button . The saftey moves when open but will not when closed. I opened it and it looks like the safety and release button hit each other ..... Not sure if I am explaining this right but I would like to shoot the gun but cant beause safety will not move to fire position....Anyone else have some issue like this....