your in luck their buddy. check youtube. type in CETME in the search box. then look for a video titled "CETME can fire and Extract without Extractor." Here's the link if it works.
It explains how to reassemble WITHOUT tools(DO NOT USE A SCREW DRIVER), which would be the correct way since it's a battle rifle meant to be field stripped by hand.
As best I can describe it. hold the bolt how the guy in the video does it. you insert the pin assembly into the bolt chamber. There is one hole on either side of the bolt where if you twist the pin assembly around you will see the "notch annondo" the guy refers to which is basically the notch will be visible in the side closest to you. position this so it's inline with the hole. Then insert the bolt over the pin assembly with the flat side and hump on it facing up. Push the bolt all the way back. then sqeeze the rollers. It should move the bolt forward and let the rollers sink back in to the bolt. then grip the rollers so they won't pop back out. grip exactly like the guy in the video does. It should be hard but not impossible feeling. Then roll the bolt over as the guy does. It will go 3/4 of the way easy then the rest requires the finess(it's all about the grip!!!) It may take you a few tries to get it right but it'll work. Then be sure the bolt has that nice clack when you slip it back into the chamber.
Hope it helps and happy shooting.
