Vinny88

Hi, this is probably a really simple question, but this is my first shotgun and I'm afraid I'm doing something wrong. I'm trying to follow the manual to disassemble and clean my SuperSport and am stuck when trying to remove the trigger group. It says to use my firing pin to push out the stop plug, but I'm not getting anywhere. I feel like I'm pushing pretty hard; enough so that I'm tempted to get a hammer and start whacking at the plug with a screwdriver. I assume that's a bad idea. Any advice? Thanks!