I recently went out shooting on the range with a friend that has an AR15 (223 cal.). Now that was a lot of fun. I was very impressed with the accuracy of the gun.
Since I have been toying with the idea of getting one of these, I decided to start doing my homework on the internet to see what is all available. What I found was a lot of brands, a lot of different models, and all kinds of options for these guns. I have been told on a few occasions that "all the parts are interchangeable so it doesn't matter which one you buy". In theory that may be true, but in actuality, I can't help but feel there are differences.
So.....for those of you with AR15 experience, what do you think? What are you shooting brand and model wise? What experience do any of you have with this style gun? Thanks for the help.

