The premium version of the VFC VR16 Calibur, the Avalon Calibur, is available at Chilean airsoft retailer RedSpot. It is a full-metal AR-style AEG that comes equipped with a  MOSFET, KeyMod rail, 6.03mm tightbore barrel, Cerakote finish, ambidextrous operation, 120-round mid-cap magazine, and the QRS stock, VFC's own design. Here is their take in this video feature (in Spanish).