UTG Pro 30mm Flip-to-Side Picatinny/Weaver QD Ring Mount Black. Features of Leapers UTG 30mm Flip-to-Side Picatinny/Weaver QD Ring Mount: Precision Machined From Aircraft-grade Aluminum Alloy with Anodized Black Matte Finish Patented Innovative Flip-to-Side Design Allows Target Acquisition at Varying Distances and Flexible Position of Accessory Fits Magnifiers or Other Accessories with 30mm Tube Diameter Complete with 2 Inserts to Use with a Wide Range of Flashlights or Other Accessories with 30mm 27mm or 1" Diameter Picatinny/Weaver Compatible Mounting Base with Patented Quick-detach Lever Lock for Rapid and Secure Installation 40mm Center Height Ensures Compatibility with Many Popular Dot Sights Package Contents: Leapers UTG 30mm Flip-to-Side Picatinny/Weaver QD Ring Mount Specifications for UTG Pro 30mm Flip-to-Side Picatinny/Weaver QD Ring Mount: Manufacturer: UTG Pro Finish: Matte Tube Diameter: 30 mm Ring Quantity: Single Fabric/Material: Aircraft Grade Aluminum Condition: New Color: Black Package Contents: Leapers UTG 30mm Flip-to-Side Picatinny/Weaver QD Ring Mount UTG Pro RG-MF30QS: 30mm Flip-to-Side Picatinny/Weaver QD Ring Mount Black