Leapers UTG ACCU-SYNC Leveler 30mm Black. 2 oz Features of Leapers UTG ACCU-SYNC Leveler Ergonomically Dehorned Corners and Melted Contours Compatible with UTG ACCU-SYNC Cantilever Mounts and Rings Magnetic Flip-to-Side Anti-Cant Bubble Leveler Durable Matte Black Anodized 6061-T6 Aluminum Construction 25 mm Ring Width We recommend to tighten the ring top screws with a torque value of about 25 inch-lb. Package Contents: Leapers UTG ACCU-SYNC Leveler Leapers UTG MT-RTR3: ACCU-SYNC Leveler 30mm Black