2015 Forest River XLR Viper 305V12, 2015 Forest River Travel Trailers for sale in Anna Illinois - Serving all of Southern Illinois nearby Paducah Kentucky 2015 Forest River Viper 305V12 Wherever the road takes you, the Viper gets you there in complete comfort and stylewith more storage, a sleeker, aerodynamic exterior and space for toys and all the gear that goes with them. Vipers ergonomically designed interior is the perfect blend of form and function, with storage or living space maximized in the V.