vector optics vaterpas ring 30 mmImprove your shooting accuracy and stability with the Vector Optics 30mm Offset Bubble ACD Mount with Compass, model SCACD 05. This mount is designed for shooters who require precise mounting and added functionality for their optical equipment, making it an essential accessory for both hunters and competitive shooters. Features: 30mm Offset Design: This mount is designed for 30mm sights and provides an offset mount that makes it easier to align the