vc1111 -
The reason I said Bushmaster is because they are reasonably priced, consistently well-made, nicely finished, use stronger mil-spec 4150 steel in the barrels, have true 5.56 NATO chambers, chrome line both bore and chamber in every barrel except the competition type barrels, and are reputed to have good customer service (although I’ve never had to use it). I have or have had several Bushmasters, pre and post-ban Colts, and a Rock River Arms rifle. In my opinion the nicest of all of these is the pre-1994 Colt AR-15/Sporter but the Colts made now do not compare, hence my Bushmaster recommendation. My RRA is fine, there’s nothing wrong with it, I just feel that my Bushmaster is a better rifle for approximately the same price. RRA can make a rifle with all the good stuff Bushmasters come with standard, but these are special orders and not always available. RRA rifles are very nicely finished on the outside, but not all have chrome lined barrels, or true 5.56 NATO chambers, and all RRAs have 4140 steel parts (not up to mil-spec). I’ve never owned an Olympic or Armalite but I don’t believe they come with as many desirable features as standard equipment as Bushmasters.
Just my 2 cents, go with a Bushmaster.