Cobalt Kinetics PRO Series 10.8" Upper Receiver Group

The PRO Series upper receiver group arrives from Cobalt Kinetics assembled, so there is no receiver to build up before it goes on a rifle. It takes a standard AR pattern lower.

The 10.8" designation puts this one in the middle of the PRO Series range. Cobalt Kinetics uses that figure to separate lengths within the line and the distributor feed passes it through unlabelled, so the listing repeats it as given. No chambering is listed for this SKU, which is worth confirming off the receiver before you order a matching bolt group.