NcStar Ruger Mini 14/Mini 30 Ranch Rifle Weaver Scope Mount/Black (MRUB) Mini 14/Mini 30 weaver style rail fits only existing Ruger integrated mounts Includes mounting hardware Constructed of Hard anodized Aluminum Includes mounting hardware and made by NcStar Weaver style rail fits only existing rugger Integrated mounts Dimension include 7-Inch diameter