I recently bought my first AR as well. I went with a true AR and bought a Armalite M10. It can shoot several different calibers but mine is 5.56MM. I put a red dot sight on it but ordered a pop up iron sight the other day. The red dot is nice enough but I think having a iron sight will work better. I don't have to worry about cutting it on or the battery going dead because I forgot to turn it off.
So far, I like this gun. If someone wanted to come to my home with bad intentions, I could make them rethink the idea. I've already bought 10 mags. Plan to buy more latter. Also have quite a few rounds bought as well. I been buying the green tips 62 grain ones. M885 I think it is.
Look forward to more videos. Trying to figure out how to use this site. lol