In theory, there's zero chance that the Series II will fire if dropped (assuming everything works as intended). OTHO, there's some non-zero chance your Series I will fire if dropped. My WAG is that it's much less than 1%, but others probably have better estimates. I have a Series I Kimber and a Series 80 Colt, and I don't worry about either firing if dropped. Not that I've ever dropped them.


As to the slide not locking back, I would first try a different mag if you haven't already done so.