So I have a AR10 upper forsale. It is a Aero precision upper, X caliber 6.5 creedmoor barrel. 24" long with a .850 gas block diameter. Rifle length gas system. SLR solo lite 16" handguard and SLR adjustable gas block. Only about 20 rounds fired threw it. Did some load development but did not really dedicate any time to this as I had other projects I was working. Did however shoot sub moa. Only reason for seling is I just built a custom bolt action and this is helping pay for it. Will not come with bcg or charging handle. Asking $600 obo. Any questions feel free to ask. If you would like anymore picture just let me know.