I have two types of bag riders for the RTI prophet . I have one of the RTI cylinder type that bolts on . The others are ones that I make from Delrin plastic . I never like the way the Prophet 1 has that unfinished looking step on the stock so I made some bad riders that improves the look and ride a bag nicely as well . They just snap in and will stay in place . . The price is $45 shipped for either one .