Battle Steel 3 Rail 5-Position Shotgun Tube Mount 1913 MIL SPEC Picatinny. Gets your light and/or laser where it belongs up front so it won't be obstructed by your support hand or other gear. Specifications for Battle Steel 3 Rail 5-Position Shotgun Tube Mount: Manufacturer: Battle Steel Color: Black Finish: Class III Type II Hard Coat Anodized Fabric/Material: 6061 Aircraft Grade Aluminum Gun Rail: Picatinny Hand: Ambidextrous Gun Type: Shotgun Gun Make: Universal Gun Model: Universal Gauge: 12 Features of Battle Steel 3 Rail 5-Position Shotgun Tube Mount Will fit all 12ga shotgun tubes 5 Position Accessory Mounting 3 4/5 6 7/8 and 9 O'clock Three 1913 MIL SPEC Picatinny Rails CNC machined Ultra light weight Package Contents: Battle Steel 3 Rail 5-Position Shotgun Tube Mount Battle Steel KZ-225984: 3 Rail 5-Position Shotgun Tube Mount 1913 MIL SPEC Picatinny