UTG PRO 30mm/2PCs Medium Profile P.O.I Dovetail Rings Features Medium Profile Precision Optics Interface P.O.I Scope Rings Have a 30mm Center Height to Fit 30mm Tube Optics with up to a 59mm Outer Objective Diameter The innovative Precision Optics Interface P.O.I Addresses 3 of the Most Critical Areas in Scope Rings a Progressively Machined and Precise Inner Diameter to Achieve a Seamless Interface Between the Scope Ring and Tube b Torx Screw Locking Side Plate Controlled by Dual Spring Loaded Guide Rods Precisely Clenches Dovetail Rail for a Secure and Repeatable Zero Hold c Removable Threaded Recoil Stop-pin Provides an Additional Interface Point with the Dovetail Rail for Added Security Against Bidirectional Recoil Original Snag-free Contoured Profile with Reduced Weight and Size 6061-T6 Aircraft Aluminum and Steel Construction with a Matte Black Finish 2 Piece Ring Set, Each Equipped with 4 Top Torx Screws, Mounts onto Most Dovetail Rails Specifications Material tAluminum Finish Matte Black Weight 2.6 oz. Pieces 2 Rail Type Dovetail Profile Level Medium Ring Diameter 30mm Ring Width 22 mm Max. Scope Outer Dia. 59 mm Screws Per Ring 4 SOLD QUANTITY 1