Leapers UTG ACCU-SYNC QR 34mm Medium Profile Scope Rings Picatinny SPECIFICATIONS BRAND: LEAPERS CA PROP 65: YES MATERIAL: ALUMINUM RING & MOUNT FINISH: ANODIZED RING & MOUNT PIECES: 2-PIECE RING & MOUNT TUBE DIAMETER: 34MM RING & MOUNT TYPE: PICATINNY STYLE DESCRIPTION Features: Precision CNC Machined from 6061-T6 Aluminum and Finished in a Matte Black Anodization Lightening Cuts Reduce Overall Weight Without Compromising Durability All Sharp Edges and Corners Removed and Radiused Quick Release (QR) Mount Features Tool-free Tension Adjustment, Locking Quick Release Lever, and Squared Recoil Stops for a Secure Zero Hold and Return to Zero 15mm Saddle Height, 32mm Center Height, Fits 34mm Tube Optics with an Objective Outer Diameter up to 64mm