Ruff's Precision Manufacturing Co-Linear Integrated Bubble Ring Set in-store-only 200 mAh internal battery provides

200 mAh internal battery provides loads of power for your electronic devices and is rated to run most smartphones continuously for up to 36 hours

and top precision with a high range of adjustment

The innovative Tracking Assistant helps you to narrow down the area where your last shot hit the target

Works great with one-piece quivers (unlike most movable sights)

more solid feel

Ruff's Precision Manufacturing Co-Linear Integrated Bubble Ring Set in-store-only 200 mAh internal battery providesBuilt in level is visible from the shooting position with the shooters' non dominant eye for quick reference prior to the shot. Level significantly aids in accurate scope mounting by giving reference to the cant of the rifle during the scope mounting process while eliminating the need for multiple small levels and balancing acts! 6061 T6 aluminum ring body and cap 303 stainless steel cross bolt & nut (1 2") Alignment lug to ensure cap base alignment