Integration means stability. Browning’s Integrated Scope Mount System unitizes the ring and base into a single ultra-rigid unit. Machined from 7000 series aluminum alloy they eliminate alignment problems and the possibility of a loose connection between the base and ring. They are available in .400 Standard height .500 Intermediate height and .600 High height versions to fit your needs. – Material: Alloy – Color: Black – Pockets: Gloss – Mount Pieces: Two Piece – Ring Diameter: 1 inch – Ring Height: Standard – Screw Quantity: 8 – Bases Screws: 0.25 – Ring Screws: 0.375 – Weight: 6.4 oz