I'm considering an AR and realize there are a lot to choose from out there. While the shorter 16" variants have taken over the lion's share of the market, I am thinking I might be inclined towards a 20" with the carry handle. I have my eye on a used Bushmaster at a local shop but wanted some opinions before I go any further. What are the pros/cons of the Bushmaster brand based on personal experience? Anything specific I need to be looking for? My intended use would be punching paper at the range, and I'm not interested in mounting a bunch of tactical accessories or optics, or using it for home defense or hunting.