Mossberg 500 Turkey, Optic Ready, Pump Action, 20 Gauge, 3 Chamber, 22 Vent Rib Barrel, Mossy Oak Greenleaf Finish, Synthetic Stock, Receiver Milled for Shield RMSc-Pattern Micro Dot Sights, Fiber Optic Front Sight, 5 Rounds 54337 Mossberg 500 pump-actions have set the standard for effectiveness in the field for decades. Now, new Turkey models are offered optic-ready- with receiver cuts that accept low-profile direct mounting of Shield RMSc-pattern micro dot sights for improved eye alignment and target acquisition.