11mm-3-8-dovetail-to-7-8-20mm-picatinny-rail-adapter-converter
11mm-3-8-dovetail-to-7-8-20mm-picatinny-rail-adapter-converter, Product Features:Fits dovetail 11mm rail.Dovetail rail extension.Can be used to convert 11mm to 20mm.Picatinny rail allows for the mounting of Picatinny or Weaver standard scopes, red dots.SHIPPING NOTICE: Free Shipping from Dallas Texas. Please allow 48 hours for processing, and 3-5 business days for delivery.