Ruger Ruger-57 Optic Adapter Plate 6061-T6 Aluminum Black Hardcoat Anodized The Ruger-57 Optic Adapter Plate supports The Use Of JPoint MRD. & Shield Rms Red Dot Sights On The Ruger-57 Pistol. The Plate Is Precision CNC machined From 6061-T6 Aircraft Aluminum With a Matte Black Hard Coat Finish For Strength And Durability. Simply Place The Adapter Plate Onto Slide And Secure It using The Two #6-32 screws Provided. Tighten The screws Firmly (30-50 In-Lbs.) using a Torx T-15 Wrench (Not Included). Install The Optic Onto The Adapter Plate By following The Sight manufacturer's Mounting specifications (Sight Not Included). Note: The Extra screws Provided In The Package Are Meant For installing The JPoint Sight Only. Shield Sights Should Fit This Base Without Modification. The Adapter Plate Is 1.700" Long X .975" Wide And Weighs 0.02 ounces. This Genuine Ruger Factory Accessory Is Made In The USA. Finish: Black Hardcoat Anodized Style: 1-Piece Material: 6061-T6 Aluminum One Or Two Piece: One Piece Adaptor Type: Optic
