Yep, tried that pdf. Didn't help much with the bolt, but it did show where the mystery spring went.
I didn't have a chance to call them, since I was running late for class and posting on GT only takes a couple of seconds. I'll give them a call and see what happens.
Liberty is a candle in a tempest. It is a rare and beautiful thing that must be jealously guarded, lest it be snuffed out. And like the candle, Liberty under tyranny is difficult to reignite. -- undoubtedly said by someone smarter than I.