love the handguard and set up for this, my only complaint is that the barrel thread is 1/2x36 so looking for a suppressor becomes very difficult as everything is 1/2x28. Other than that love this upper
*****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