The Ergo Grips Tri Rail Shot Gun Forend is constructed of 6061 T6 anodized aluminum, which ensures that your forend will be light-weight, long-lasting, and durable. This is a great addition to the ERGO line. The Ergo Mossberg Tri Rail Shotgun Forend also includes a Ergo LowPro rail cover. So, you don't need to worry about scratches and dings when you aren't using it. So stop waiting around and get your Ergo Grip Mossberg Shotgun Forend now! Specifications for Ergo Grip Mossberg Tri Rail ShotGun Forends: Manufacturer: ERGO Color: Black Finish: Matte Black Fabric/Material: 6061-T6 Aluminum Gun Make: Mossberg Gun Model: Mossberg Model 590, Mossberg Model 500 Gun Rail: Picatinny Included Accessories: ERGO LowPro Rail Covers Condition: New Gun Type: Shotgun Quantity: 1 Features of Ergo Grips Tri Rail Shotgun Forend: Constructed of 6061 T6 anodized aluminum Adds to versatility of weapon Will accept vertical foregrips, lights, etc. Includes Black ERGO LowPro Rail Covers Package Contents: Ergo Grip Mossberg Tri Rail ShotGun Forends 3 black picatinny rail covers Which weapon models is Ergo Grip Mossberg Tri Rail ShotGun Forends compatible with? Ergo Grip Mossberg Tri Rail ShotGun Forends is compatible with Mossberg Model 500, Mossberg Model 590