Fit and finish issues - Geissele USASOC AR15/M4/M16 Upper Receiver Complete Group

I was very surprised by how poorly this was put together. The muzzle device was not properly timed. The firing pin is oversized making it get stuck in the bolt. The handguard does not line up with the receiver. The charging handle does not lock into the slot on the receiver. I'm very surprised and disappointed in the build quality of an upper, especially at this price point.