Talley 30mm Fixed Ring Ex-High Color Case Hardened Color Case. You can be sure these will last in your tactical arsenal. These along with their machined accuracy make them a top choice in the Talley lineup. These rings feature an oversized clamping lug on the rear and are designed to work with most all tactical scopes on the market. These rings feature a knurled clamping ring allowing the shooter to easily adjust the ring to accommodate for any forward scope movement. With the two rings on your barrel this guarantees your scope will stay zeroed no matter what. If you are looking for absolute durability in a tactical ring look no further. These rings feature a fixed clamping lug system for clamping the ring to the tube. If you are looking for a little more stand alone ring look no further. These will work on any 30mm tube. Specifications for Talley 30mm Fixed Ring Ex-High Color Case Hardened: Manufacturer: Talley Finish: Matte Ring Height: 0.6 in Tube Diameter: 30 mm Ring Quantity: Pair Fabric/Material: Chromoly Steel Weight: 4 oz Country of Origin: USA Package Contents: Talley 30mm Fixed Ring Ex-High Color Case Hardened Talley CCH300006: 30mm Fixed Ring Ex-High Color Case Hardened Color Case