I WENT TO TAKE ONE OF MY M1A'S APART AND THE TRIGGERGROUP WOULDNT COME OUT. THE TRIGGER GUARD WOULD NOT MOVE FAR ENOUGH TO DISENGAGE THE RECEIVER. I WAS STUMPED. FINALLY AFTER SOME NOT SO GENTLE PERSUASION IT POPPED OUT. TURNS OUT THE ROLL PIN THAT HOLDS THE MAG RELEASE HAD MOVED FAR ENOUGH TO ONE SIDE TO KEEP THE TRIGGERGUARD FROM MOVING FULLY INTO POSITION. JUST THOUGHT I WOULD SHARE THIS WITH YALL.