I never had much interest in owning an AR, but everyone has one and I found some deals on parts, so I built one. It shoots pretty well with Hornady 75 BTHP's. I've had a couple 5-shot groups under an inch at 100, which isn't easy for me with a 1-4x scope and this mil-spec trigger. I'm not sure on replacing the scope, but I HATE the trigger. I also don't want to spend $200, because that seems like blasphemy when the last Timney I bought for a Rem 700 was $109. Any suggestions?