Rainer Arms upper, phosphate bcg, ch.Odin Works Keymod Rail, Noveske 12.5 Stainless barrel, BCM Mod O comp.DD sights. I’ve put 300 rnds of green tip thru it with no issues, accurate & reliable. Just got out of the pistol phase & don’t want to go thru the sbr paperwork. 650.00 shipped in the conus. Email for pics.