I have a question for my fellow extremely intelligent mossbergers, Could one of you folks that owns a JM Pro series post your parts list in this thread for me to compare the item numbers with my 930 SPX? I'm curious to see if the item numbers for the gas piston assembly(26),gas piston spacer tube(25),magazine spring(31),gas system return spring(23). My numbers (930 SPX) in parenthesis . I'm looking to see if they are the same item number. thanks in advance.... the oldman....