Ghost Firearms does not specify if the upper is ramped, please contact them directly for further assistance.
The Ghost Firearms Elite 9mm Luger Complete Barreled Upper Receiver uses a 1/2x36 threaded barrel.
The Ghost Firearms Elite Complete Barreled Upper Receiver will work with the Aero Precision EPC 9 BCG.
The Ghost Firearms Elite Complete Barreled Upper Receiver will work with the Faxon Gen 2 9mm BCG. However, the CMMG Radial Delayed Blowback might work but according to CMMG that BCG can not be guaranteed to work in receivers other than their MKG, MK17, and MK9 receivers.
The Ghost Firearms Elite Complete Barreled Upper Receiver may be compatible with the Franklin Armory Binary Trigger System. However, I recommend contacting the manufacturer to confirm compatibility.
Yes, this should be compatible.
Yes, providing you purchase the correct BCG this will be compatible.
This will depend on the BCG and Lower you pair this with.
Yes, they will be compatible with this upper.
Unfortunately the manufacturer dose not provide this information, we recommend reaching out to them directly.