Ruger 57 Optic Adapter Plate (Burris & Vortex), Black, Fits Ruger-57 90720 Available to order on-line. Ships in 5-14 days $42.95 MSRP Price: $34.67 Description Details Reviews Shipping info This optic adapter plate fits the Ruger-57. (Burris & Vortex) Fits Ruger-57 Adapter Black Finish UPC: 736676907205Manufacturer: RugerModel: 90720Category: PartsOtherOptics/lights parts and adaptersStock: Ships in 5-14 business days.Unit/Measure: ea This item may be shipped directly to your home address, unless you live in a restricted state.