**Available to order if not in stock ** FX Panthera Black 500mm Air Rifle A dedicated, purpose-built air rifle made to win precision rifle competitions The FX Panthera is unlike any rifle FX Airguns have made before. It is a dedicated slug rifle, purpose-built with precision competition in mind, and complete with airgun innovation that continues the FX Airguns tradition of pushing the boundaries of airgun performance. A Generational Leap Forwards The Panthera includes technology that is a generational leap-forward for an airgun. It begins with the new Dynamic Block, a new breech block designed from the ground up for performance slug shooting. The Dynamic Block utilises a compact one-piece valve. This High-Power / Short-Impulse Valve is extremely efficient while allowing an immense and precise flow of air. The plenum feeding the Panthera is revolutionary and the first of its kind. The Dynamic Plenum is an over-the-barrel plenum which provides a consistent regulated pressurized plenum