Gunbroker. All the ones Vltor made are gone. At this point it's buying from an individual or buying a kit and sending it to vltor to build. It's not a cheap endeavor, but it's well worth it. Ammo prices make it the best option for a belt fed semi-auto. If you don't plan out putting tens of thousands of rounds down range I'd check into a 1919 or a Yugo M53 kit.