Machined from solid steel in both standard and 20 MOA configurations, Warne tactical rails are designed around the Mil-Spec picatinny style rail system and provide a strong and true platform for optics mounting. Features: Warne tactical rails allow the use of Picatinny or standard Weaver style rings Constructed of solid steel and machined in both standard and 20 MOA configurations, matte black only Cross slots feature the 1913 Mil-Spec design Bases securely mount to your gun with T-15 Torx style screws, 25 in/lb of torque recommended