you hit the opposite side of where the 2 notches are. If you look at the trigger pin, one side is smooth while the other side had 2 notches, you want to hit the smooth side into the trigger pin to push it out the other side
shouldnt it be reversed^ (shouldnt u hit it where the pin is depressed in the frame?) dont listen to me though. i'm not gonna mess with it, i'm just gettin a UL frame