I also got the large. Love it. Would buy again without hesitation.

Carnplanenut,
Yes. I always holster my firearm in the pack. Same as any carry, cover the trigger.
As for the zipper. I get what you are saying with it opening all the way around. But, if it did that, the whole front would flop forward and be a pain. Load it up and get out and use it. I think you'll agree why it is set up the way it is.