CBC 24" spiral cut barreled upper w/ 15" HERA Arms free float rail. No BCG or CH. Mount and optic can be included or sold separately. This is a more budget friendly upper but it's a shooter! There are a few light scratches on ejection port cover seen in pictures.
I've got right at 100 rounds through this upper mounted to a RR lower with 2 stage trigger and consistently shot MOA out to 300.