Place the bolt in a padded vise. Remove the "plug" at the back of the bolt. Remove all the parts that it was retaining, including the firing pin (Pay attention to how they came apart.). Knock out the cross pin that holds in the bolt head. Remove the head, gas baffle and wave spring. When reassembling, put the wave spring between the head and baffle to reduce the tendency of the baffle from wiping grease off of the back of the lugs. It has been a long time since I have had one apart, but I think that I have it covered. Someone else could chime in and verify what I remember.