1. At first, the bolt wouldn't catch after finishing a mag. Never thought anything of it because it really didn't happen that often, maybe 1 of 4 mags didn't lock, and after another shot or two it would then lock or I'd notice it was out of ammo.
2. Today, well, Monday, I realized that sometimes it would not fire, at ALL. The first or second shot might fire, but it seems as if the bolt would not cycle completely forward, resulting in a hazardous situation. If I then shook the gun or tried pressing the bolt a bit forwards, the round that was chambered would be shot out unexpectedly. I took off the upper receiver to find the sharp bolt catch (like in Dobey's posts) and sanded a bit off the edges to reduce wear on the bolt and hopefully have my gun return to normal. This is not what happened. The bolt would still not cycle completely every shot; some shots were fine, but others were chamber and waiting for the bolt to move forward ever so slightly.
3. After trying to see why the bolt wouldn't cycle forward completely, I then replaced the receiver and checked if the mags would lock when empty. They did, but only if I pulled the charging handle back. If I would fire a single shot from the mag, the bolt would not always lock back. I put a full mag through the gun again, this time using green gas, yet the bolt did not lock after the last round was fired and that the bolt would not cycle completely. I opened the bolt, locked it, and will not touch the gun again, as I am afraid to do anything more devastating to the gun...
This being said, I am in desperate need of help. If anything, I submitted a ticket online for warranty/RMA number for return. I would ask for suggestions, but seeing as the nozzle is cracked, looks like I'm going to end up shelling out money for parts and repairs.
Edited by apacifico3, 22 March 2011 - 08:11 PM.