Now I've got the bolt stuck to the rear after firing only 1 mag thru it with no issues.  The little spring was missing from the rifle as well, as I've never noticed it before.  I've fired it about 12 mags or so thru it, and fired the 1 today and the bolt is locked to the rear after firing the last ctg in the mag.  Any ideas as to what is ailing this pup now?  I removed the stock and tried to remove the trigger housing, but it won't budge...I figure it's hung on the hammer or ejector maybe.  Thanks in advance for any help..

Edited:  Order some replacement bolt hold open springs today.