Talley 1 in Med Quick Detachable Ring for Kimber 89 BGR 11mm Blued. Each ring is made from chromoly steel and has been hardened to ensure strength and durability. These rings come in a black or contrasting blued finish. Each ring is made with a strong integral sling swivel that allows the shooter to easily attach or detach the ring by simply slipping the ring between the lower receiver and the frame. Our QD rings have a solid clamping surface that provides a stable mount without damaging the finish on your firearm. Specifications for Talley 1 in Med Quick Detachable Ring for Kimber 89 BGR 11mm: Manufacturer: Talley Finish: Blued Base/Mount Type: QD mount Ring Height: 0.4 in Tube Diameter: 1 in Gun Model: Kimber Model 89 BGR Ring Quantity: Pair Fabric/Material: Chromoly Steel Weight: 4 oz Country of Origin: USA Package Contents: Talley 1 in Med Quick Detachable Ring for Kimber 89 BGR 11mm Talley K500004A: 1 in Med Quick Detachable Ring for Kimber 89 BGR 11mm Blued