Ergo Grip Xpress Nut Harris Bipod Mount. The Ergo Grips XPress Bipod Mount quickly installs with the use of a single movement whether it be a lever or a nut. It mounts right on to the Picatinny rails. Stop straggling and get your Ergo Xpress Bipod Mount right now Specifications for Ergo Grip Xpress Bipod Mounts: Manufacturer: ERGO Color: Black Additional Features: Lever Bipod Mount Finish: Anodized Fabric/Material: 6061-T6 Aluminum Quantity: 1 Gun Rail: Picatinny Gun Type: Shotgun Features of Ergo Grips XPress Mounting System: Mounts bipods to Picatinny rails Quickly installed with the use of a single lever Constructed of 6061 T6 anodized aluminum Package Contents: Ergo Grip Xpress Bipod Mounts Includes mountaing hardware. Ergo Grip 4290: Ergo Xpress Nut Harris Bipod Mount