Ruger revolver [Blackhawk, Redhawk, GP100 & other] red dot mount | type S [RMSc, DPP, K-series footprint]Red dot mount for Ruger revolver models, including Ruger Blackhawk, Ruger Redhawk, Ruger GP100 and other Ruger revolver models. Replaces the rear sight and allows mounting red dots with Shield RMSc, Leupold DPP and Holosun K series footprints. No slide milling or permanent modifications required. Full compatibility list is below. Machined from durable aluminium in USA by EGW.