Evolution Gun Works Picatinny Scope Mount Ruger American Rimfire. This Evolution Gun Works Rifle Scope mount is a Picatinny base with an extended length to allow flexible tactical rifle scope mounting. The gun scope mount is capable of fitting Weaver or Picatinny scope rings. The scope base comes in options for 0 and 20 MOA scopes to cover a wide range of shooting distances. The EGW Ruger 10-22 Picatinny Rail Scope Mount is part of the Evolution Gun Works family of rifle scope mounts and is one of many Rifle Scope Mounts Rings and Bases available through our online store. Specifications for Evolution Gun Works Picatinny Scope Mount Ruger: Manufacturer: Evolution Gun Works Fabric/Material: Aluminum Gun Rail: Picatinny Hand: Ambidextrous Gun Make: Ruger Height: 0.4 in Weight: 2 oz Condition: New Quantity: 1 Mount Type: Picatinny Attachment Type: Picatinny Features of Evolution Gun Works Picatinny Scope Mount Ruger Fits Weaver scope rings Picatinny scope rings Anodized matte black finish Package Contents: Evolution Gun Works Picatinny Scope Mount Ruger Mountinghardware Evolution Gun Works Scope Base Ruger American Rimfire Picatinny Rail