Ideal accessory for long range shooters who must avoid even the slightest cant, the Vector Optics ACD Offset Bubble level ring can be mounted on your 30mm scope tube easily. Install it on your scope to be sure to dismiss any canting issues for good.
This ring is made of 6064 T6 Aluminum with a matte black anodized finish, which makes it really lightweight and also durable.
Length: 49mm(1.9 inch)
Width: 8mm(0.3 inch)
Weight: 14g(0.5 ounce)
Finish: Black matte
Anti Cant Device mount designed for real fire arms
Air bubble floating to indicate level situation
High quality 6063 T6 aircraft grade aluminum alloy