This upper fit my lower perfectly. The cerakote is flawless. I put 200 rds through the barrel with no issues and it's extremely accurate at 25 yards.
*****Ammunition Notification***** Ghost Firearms test fires every custom upper to verify cycling. We do not guarantee cycling with all ammunition due to vast differences in the quality of ammunition. We will only warranty cycling with US made ammunition. We will not warranty cycling with imported, steel cased or reloaded rounds.
Please allow adequate time to build and test fire all uppers