Mossberg 590

Credit to @DaltTT for the baseline Mossberg 500 shotgun.

All I did was figure out what his scale was, and resize what looked like a high def picture of the Mossberg 590M to fit his scale and trace it to fit his own shotgun.

Some details are not exactly lined up, but its not a big deal. I only changed or "fixed" details that could be easily corrected and also seemed worth changing.