• Proudly Designed and Made in USA• High Profile P.O.I® (Precision Optics Interface) Rings Have a 33mm Center Height to Fit Optics with a 1" Tube, and up to a 65mm Outer Objective• The Innovative P.O.I® (Precision Optics Interface) Addresses 3 of the Most Critical Areas in Scope Rings - a) Progressively Machined for a Precise Inner Ring Surface to Achieve a Seamless Ring-to-Scope Interaction b) Low Profile and Flush-fitting Locking Side Plate Controlled by Dual Spring Loaded Guide Rods Interfacing with the Rail with Torx Screw Locking to Ensure Secure and Repeatable Zero Hold c) Square-shaped Integral Recoil Stop Interfacing with a Picatinny Slot via Complete Surface Contact to Eliminate the Possibility of Forward and Aft Movement from Recoil Vibrations• 2 Piece Ring Set, Each Equipped with 4 Top Torx Screws Designed with a 22mm Ring Width • Designed to Fit on Mil-spec 1913 Picatinny Rail Platforms • Machined from 6061-T6 Aluminum Alloy and 4605 Steel with Matte Black Hard Coat Anodize• UTG PRO® Original Snag-free Contoured Profile with Reduced Weight and Size