NightForce XTRM Multi Mount 34mm Black 6 Screw. The MultiMount offers far more versatility however functioning as a user-configurable system providing a rock-solid base for any Mil. Std. 1913 accessory that will fit. Designed to replace the top half of an X-Treme Duty ring the MultiMount allows placement of a Mil. Std. 1913 rail at the 45 degree left 45 degree right and/or 90 degree up positions. Two rail sections are included along with mounting hardware. The MultiMount is available for 30mm and 34mm X-Treme Duty rings. Specifications for NightForce XTRM Multi Mount 30m: Manufacturer: NightForce Finish: Anodized Quantity: 1 Fabric/Material: Aluminum Condition: New Color: Black Hand: Ambidextrous Gun Type: Rifle Package Contents: NightForce XTRM Multi Mount 30m NightForce A426: XTRM Multi Mount 34mm Black 6 Screw