Found one of my posts from some time back. Check it out here:
M-1A Op Rod Removal
Or just read my method.
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>It took me 50 minutes to remove my op rod for the first time. Those danged factory instructions are so vague, and the USGI instructions are equally help-less.
It seems everytime I try to remove the op-rod, I totally forget how I did it the last time. I just tried Tomas' trick (sans screwdriver) and it works good.
A screwdriverless method.
-Rest your rifle on the left side of the receiver with the muzzle pointing to your left.
-Line up the rear of the op rod with almost the rear of the takedown slot.
-Put your left index finger under the op-rod, just to the left of the clip guide. the end of your finger should be contacting the roller-cam guide slot.
-Place your right hand/finger behind the op-rod charging handle. (The surface that is the bottom of the handle when the rifle is right side up).
-Using your left index finger, apply upward pressure on the op-rod, then with your right hand, pull the charging handle towards your body (up-in relation to the rifle). Try wiggleing if its stubborn.
This has been working for me as I've typed this. I've shot about 750 rounds through my M1A, so the action may be loosened up so that it's easier to take down.
Good Luck!
[/quote]
Hope this helps.