Integrated Scope Mounts unitize the ring and base into a single unit machined from 7000 series aluminum and eliminate alignment problems and possible loose connections between bases and rings; Use the .400" Low ring height for scopes up to a 44mm objective with a standard barrel contour; Use the .500" Medium ring height for scopes up to a 50mm objective with a standard barrel contour; Use the .600" High ring height for scopes up to a 56mm objective with a standard barrel contour; Available for both 1" and 30mm diameter scopes in Burnt Bronze Cerakote, gloss and matte blued finishes