Ok so I used an M16 for 10 years in the Army and know the platform pretty well. Having said that, I have no idea where to look for a good civilian AR in terms of company. Bud's Gun Shop is selling a Bushmaster CAR15 with a 16" barrel for 700 bucks, but I've heard Bushmasters aren't that reliable. Any advice on which brands to look for / avoid? Thanks!