Colt 6920's for a good price with removable carry handle.
http://us2.campaign-archive1.com/?u=99c3876c30b42968d4190988b&id=d13dc4d1e3&e=7dbec3a808
Hey Huck, what price on the Ruger?
Vance is at 630 for the Ruger and 600 for the Smith. Just starting my ar reseach
I know the S&W is a solid gun. Downsides are no forward assist, no dust cover and a 1:9 twist. Otherwise everything is good to go on them. My fil has one and it shots just fine and handles nicely.
I don't know much about the Ruger ones.