Weaver Modular Level System

When mounting optics, precision is the name of the game and there's one piece of gear that's critical to success, the Weaver Modular Level system. This system is a simple, yet effective way to guarantee a scope's crosshairs are level to the receiver. This ensures accuracyy and helps shooters maximize their optics investment. Notes: Simple to use and extremely reliable High strength magnets for secure grip For use when mounting scopes on most types of firearms Indicates if scope crosshairs are level to receiver for optimum accuracy