MANUFACTURER: ATN FAMILY: Thor Series MODEL: Cantilever Mount TYPE: Accessory-Rings & Ring Mounts ITEM GROUP: Scope Rings FINISH: Black FINISH TYPE: Black MAINTUBE SIZE: 30mm SHIPPING WEIGHT: 0.6 lbs. ADDL INFO: Quick Detach ADDL INFO: Dual Cantilever 30mm Mount MFG MODEL NO: ACMUDCQDM2 UPC: 658175115281