Well if you mean the 20" stainless with the 1" diamater barrel, yeah I have a upper like that. I like it real well. I have a lower with a standard trigger that is giving me problems when trying to get the best groups, I am in the process of replacing the trigger. I have less than 200 rounds thru it so far, but so far I will shoot a five shot group and three of those can be covered with a dime or nickel, but there are two flyers that open up the group. I am going to blame the trigger for that. The only thing that really bothers me is that the barrel is chambered for a .223, apparently a tight .223. DPMS does not recommend firing 5.56 but I did shoot 25 rounds of green tip M855 just to see how it would group, it did not group that well and I did not like the look of the cases so I intend to stick with .223 in the future. Also it is kinda heavy, not that I care so far. Black Hills 68gr, has grouped the best so far, but WWB 62gr are ok for plinking.