Yes, you are correct the old models had the fire selector on the left side. Newer models are supposed to have ambidextrous selectors on both sides. It being the military, though, it will 10 years before they get into our soldiers hands. What i am seeing in that picture is, I think based on other pictures, one of the frame pins that runs through the receiver.
You quoted my post before I added this part:
Also, we need to remember that many shooters make their own ammo using a press. You can remove every bullet from shelves and the internet and I or anyone else can get spent casings, scrap metal, some powder, and lead and be churning out bullets easily. Also, for people who are 30+ minutes from a dealer it can be more convenient to just have it shipped to you. There is also a wider selection online.
Me, personally, I don't buy certain types of ammo in stores because it is more expensive and prices vary from dealer to dealer. Plus, when buying in bulk, like say 1,000 rounds at a time, it is just easier to buy online and get a deal.