UTG ACCU-SYNC QR Cantilever Mount, 40 MOA Compensation, 70 mm Offset, For 30 mm Tube Diameter. Features a Quick Release (QR) Picatinny Mount with Locking QR Levers, Tool-free Tension Adjustment, and Squared Recoil Stops. Overall Lightweight with Snag-free Radiused Edges and Corners. 6061-T6 Aluminum Construction Finished in Matte Black Anodize. Rated for .338 LAPUA Magnum. Specifications for Leapers UTG Pro ACCU-SYNC QR Cantilever Mount: Manufacturer: Leapers UTG Fabric/Material: 6061-T6 Aluminum, Steel Offset: 70 mm Color: Black Weight: 5.7 oz Finish: Anodized Features of Leapers UTG Pro ACCU-SYNC QR Cantilever Mount Quick Release (QR) Picatinny Mount Features Tool-free Tension Adjustment, Locking QR Levers, and Squared Recoil Stops for a Secure and Repeatable Zero Precision CNC Machined from 6061-T6 Aluminum and Finished in a Matte Black Anodize 20 MOA Vertical Compensation Increases Access to Elevation Adjustment Range Snag-free Radiused Edges and Corners Lightening Cut for Reduced Weight Rated for .338 LAPUA Magnum Package Contents: Leapers UTG Pro ACCU-SYNC QR Cantilever Mount