This riser mount attaches to existing picatinny rails. Features integrated recoil lug. Ideal for mounting scopes or dot optics. Misc .38" Type 1-Piece Base Model 3/8 In. to Picatinny Mounting Adapter Style 3/8" to Picatinny Conversion Adapter Finish Black Pieces 1 Series Adapter Scope Base Material Aluminum Mount Type Picatinny Rail/Weaver Rings Included No