Hush Holsters SKS Red Dot Sight Mount RMR Black. Replaces rear sight on SKS. No permanent modifications required. This product is for mounting small red dots not scopes or prism sights zero retention not guaranteed on large sights like prisms. Specifications for Hush Holsters SKS RMR Red Dot Sight Mount: Manufacturer: Hush Holsters Color: Black Fabric/Material: Aluminum Attachment Type: Picatinny Package Contents: Hush Holsters SKS RMR Red Dot Sight Mount Associated hardware only Hush Holsters SKS-OPT-RMR: SKS Red Dot Sight Mount RMR Black