Re: Thinking of buying a 5.56 semi auto rifle..
My girlfriend has one of their rifles, good rifle.
There are many types you can build. I've seen some great Bushmasters, Rock River.
I've seen some issues with STAG lowers, one in the gunshop had the most sloppy metal treatment I've ever seen. Like someone slathered the anodization on with a paint brush...
You can get fancy with barrels but MOST 223's will do the job and it comes down to price, in my opinion. There are some pre-built Bushmasters that will let you go out and shoot out of the box for under 8 bills. There's a lot of used one's too...