Shop › MESA SURSHL AL MOSS 500/590 6-20GA MESA SURSHL AL MOSS 500/590 6-20GA $94.95 Mesa Tactical SureShell, 6-Shell Side Saddle, Fits Moss 500/590/MAV88, 20 Gauge, Aluminum, Matte Finish, Black 95170 Quantity: Add To Cart Added! Mesa Tactical SureShell, 6-Shell Side Saddle, Fits Moss 500/590/MAV88, 20 Gauge, Aluminum, Matte Finish, Black 95170