Colt MK18 Upper. Factory 10.3” barrel Colt CAGE code 13629 marked under the handguards. 2021-2022 production uppers. CAGE code marked upper receiver. Factory side swivel with carry handle. Double lined M4 handguards. C and MPC marked bolt carrier group. Real deal MK18 uppers sealed in the Colt blue anti-corrosion bag. Impossible to find and left over from a small government customer production run. We have a few available. These are the only real Colt MK18 uppers on the market.
Update: 3-14-23 two more uppers placed into stock.
