Tacstar's sidesaddle places shotshells right where you need them for both quick and easy reloading.The slimline sidesaddle features a streamlined aluminum back plate with a non-glare anodized finish which has been contoured to take less space on the receiver and has fewer areas that could potentially snag.It that mounts directly to the back side of the receiver.The shell carrier is also smaller than the traditional sidesaddle and is made of flexible, synthetic rubber for durability and weather resistance.Shell Count: 6Type: Shotshell CarrierColor: BlackMaterial: Polymer w/Aluminum Mounting PlateSize: 6 RoundsModel: SideSaddleFinish: MatteModel Fit: Mossberg 500/590Mount Type: ReceiverCaliber Or Gauge: 12 Gauge