Warne 1in Permanently Attached Tikka Medium Tactical Scope Rings are stylized, lappable and engravable. Maxima series riflescope rings are designed to mount on Weaver style and picatinny bases. The finish uses a powder coating process that is used by Zeiss and Nikon on their scopes. The rectangular stainless steel recoil key is unique and has proven reliable under recoil. Warne 1in PA Tikka Medium Tactical RifleScope Rings Options 1TG: Warne 1inch Permanently Attached Tikka Medium Gloss Rings 1TM: Warne Riflescope 1in Permanently Attached Tikka Medium Matte Mounting Rings 1TS: Warne 1 in Permanently Attached Tikka Medium Silver Mount Rings Specifications for Warne 1in Permanently Attached Tikka Medium Rifle Scope Rings: Category:  OPTICS - RINGS Type:  Rings Size:  Tikka Height:  Medium Tube Diameter:  1" Finish:  Matte, Gloss, or Silver Specifications for Warne Medium Scope Rings w/Matte Finish 1TM: Manufacturer: Warne Finish: Matte Ring Height: Medium Tube Diameter: 1 in Ring Quantity: Pair Ring Type: Ring Set Size: Medium Condition: New Color: Black Features of Warne Medium Scope Rings w/Matte Finish 1TM: Permanently attaches to base Square recoil key for positive engagement of ring to base Rings securely mount around scope using four Torx style T-15 socket screws 25 in/lb of torque recommended Mount on Weaver style and picatinny bases Tube diameter 1 inch Package Contents: Warne Medium Scope Rings w/Matte Finish 1TM Package Contents: Warne 1in Fixed Tikka Medium RifleScope Rings