The FN Barracuda is a double-action multi-caliber revolver designed by and built by Astra-Unceta y Cia SA to Fabrique Nationale's specifications.
[1] FN decided to enter the revolver market, aiming to satisfy law enforcement customers on both sides of the Atlantic, and this gun represented their only attempt at doing so, in collaboration with Astra.
[1] Fairly standard in design, with respect to other double action / single action (DA/SA) heavy frame revolvers, the fundamental design difference between the FN Barracuda and other brands is the rapidly interchangeable cylinder, allowing the user to easily switch between 9×19mm Parabellum, .38 Special, and .357 Magnum calibers.
[3] The gun has a pinned barrel, five-screwed frame assembly, and an internal coil hammer spring that can be adjusted for trigger pull weight, among other details.
[3] Prices vary strongly based on the availability of the various cylinders and the condition of the revolver.