VectorOptics 30mm/25.4mm ACD mount with picatinny rail

Easy to Use, Designed for Real Firearms, Full Metal, See-through, Light and Compact Diameter:30mm with 1” adapter Length:50mm(2.0 inch) Ring Width:21mm(0.8 inch) Rail Length:45mm(1.8 inch) Weigth:33g (1.2 ounce) Finish:Black matte Anti Cant Device mount designed for real fire arms Air bubble level on side indicating the level condition Build-in see-through picatinny rail 4 slots High quality 6063 T6 aircraft grade aluminum alloy Including items: hex key, 25.4mm 1” adapter