Browning's integrated scope mount system unitizes the ring and base into a single, ultra-rigid unit.The integrated design eliminates alignment problems and the possibility of a loose connection between bases and rings.It is machined from 7000 aluminum alloy for high strength and durability.This model has a black matte finish, low ring height for scopes up to a 44mm objective with a standard barrel contour and is compatible with t-bolt rifles.Type: 2-Piece Base/RingsTube Diameter: 1"Height: StandardSize: 1" RingFinish: MatteStyle: 2 PieceMaterial: 7075-T6 AluminumStyle Description: RifleOne Or Two Piece: Screw (4)Mount Type: Browning-Style 2-Piece BaseLock Type: Low