Bought this used here in Fallon a few weeks ago, used it once to tow a 30ft 5th wheel home from Oregon and no longer need it. Worked fine although I never had the need to use the slider on it, but no reason it shouldn't work as it should for short bed trucks. Rails not included. $150 firm.
Also have a new in box set of Curt 16420 5th wheel rail mount brackets for 03-12 Ram 2500/3500 trucks. $100