Sniper 5 Position Tactical Rail Barrel Mount for 12 Gauge Shotgun Black. 3 side rails 5 positions for mount accessories. Fits 12 Gauge Shotgun. It has 5 positions shot around gun barrel. Picatinny/Weaver System. This small piece of art work turns your gun more versatile with more function and features. Add more features and functionality. The first step in upgrading your shotgun is buying this barrl mount. Specifications for Sniper 5 Position Tactical Rail Barrel Mounts: Manufacturer: Sniper Color: Black Finish: Anodized Matte Fabric/Material: Aircraft Grade Aluminum Gun Rail: Picatinny Gun Type: Shotgun Length: 1.38 in Width: 1.5 in Height: 1.5 in Weight: 1.3 oz Included Accessories: Allen Wrench Condition: New Quantity: 1 Package Contents: Sniper 5 Position Tactical Rail Barrel Mount Sniper MBRAR: 5 Position Tactical Rail Barrel Mount for 12 Gauge Shotgun Black