The Sightmark Tactical 30mm LQD Cantilever Mount is a quickdetach, singlepiece base for 30mm riflescopes. This mount features a twoinch forward offset, allowing use of riflescopes requiring greater eye relief and providing a more comfortable cheek weld on ARplatform rifles. The 30mm LQD is constructed of durable aircraftgrade 6061T6 aluminum and finished with a matte black, nonreflective coating. The LQD mount allows for quick and easy transfers from one firearm to another, on installing and removing from the same firearm while maintaining zero.Features 6061T6 aluminum body Fits Picatinny rails Matte black, nonreflective finish LQD mount 30mm ring Easier transferring from firearm to firearm.