Thanks Ridge & Foot,Was just wondering about particular brand uppers and lowers mostly.Kinda want to put together the highest quality I can .Something in line with Baer or wilson or the like.Might have a couple of uppers.One with the old A1 stuff like my old battle rifles with the triangle hand guards,and maybe another one with flat top for longer range use.Still in the planning stages.Sometimes I can get pretty anal about stuff I want!