REPTILIA BUBBLE LEVEL FOR AUS MOUNTReptilia, Bubble Level, Offset for Use with AUS Mount, Anodized Finish, Black Designed to integrate seamlessly with Reptilia AUS mounts, the Reptilia Bubble Level ensures precise rifle cant alignment for improved long range accuracy. Its compact profile and durable construction keep added weight to a minimum while maintaining dependable performance in demanding conditions. Key Features: Compatibility: Fits Reptilia AUS scope mounts Function: Helps