Colt King Cobra Adapter Plate RMSc Black. When youre ready to upgrade your King Cobra Target our precision-engineered plates are the perfect solution for enhancing accuracy and speed. These plates are compatible with popular red dot optics featuring the Shield RMSc and Holosun 507k footprints providing you with the flexibility to choose your ideal sighting system. Installation is straightforward as each plate attaches securely to your revolver using the rear sight hole and screws for a solid and reliable fit. Specifications for Colt King Cobra Adapter Plate: Manufacturer: Colt Red Dot Sights-Footprint: RMSc Optic Cut: RMR Cut Fabric/Material: Stainless Steel Color: Black Features of COLT SP301149 KING COBRA RMSC PLATE Compatible with Colt King Cobra RMSc footprint Matte black finish Durable construction Low-profile design Package Contents: Colt King Cobra Adapter Plate Colt SP301149: King Cobra Adapter Plate RMSc Black