Discovery Optical Anti Cant Riflescope Bubble Level for Tube Hunting, 30mm / 3" L

SIZE 30mm

• Replace the 6mm diameter bubble level with 8mm bubble level to make it more visible on your rifle scope
• The thickness of bottom is only 2mm(for 30mm and 34mm) or 4.4mm(for 25.4mm)
• It is easy to install and to mount anywhere on scope tube left or right side, the ring is so light to carry and cannot block you view of hunting
• Makes it easy to maintain a perfect horizontal hold during extreme-range shooting
• Viscous fluid: No matter what circumstance, it always exists one bubble

• Item Reference: B019FBBEV8 0190203828256 190203828256