Once that is out of the gun you will need to press in the spring guide to remove the top dust cover:
Completely remove the top cover so your gun looks like this:
Now we will remove the spring guide and spring by simply pushing it forward and out of its slot:
Next we will remove the spring that keeps tension on the sliding tab above the barrel:
I use a pair of 90 degree needle nose pliers for this:
Now slide the tab until it is aligned like this:
Then remove the top pin. It will be snug but if it takes much effort check that the sliding tab is aligned correctly or this wont come out:
Now push down on the tabs on both sides of the lower receiver and push the bolt forward (shown by the yellow arrows):
Now you can lift the bolt/barrel assembly out of the receiver. If it wont come free easy check that the sliding tab is aligned correctly again:
This needs to be cleaned!
Now we can get to work on the bolt/barrel assembly:
Slide the bolt catch off in the direction showed:
Edited by dobey, 03 March 2011 - 07:43 AM.