Looks like this was done intentionally by the previous owner. Waiting to find out what the advantage of always having it open is.
Seems like i've still got the lock-up issue despite fully pulling back on the trigger and holding the mag in to eliminate the mag variable. Perhaps i'll ask one of the pros this Friday at TTAC (hopefully there's a game going on!).
"I loved all who were positive
In the event of my demise." - Tupac