Optics Level Bubble,Scope Level, Fits 30mm Scopes, Black

The Scope Bubble level is designed to be mounted on most scopes without removing the rifle. It is easily visible while maintaining the sight picture and mounts quickly to the riflescope tube.
The unique hinge design provides strong resistance when opening and closing the hinge. The bubble position can be slightly adjusted without falling off without tightening the fixing screws. The screws can be tightened after adjusting the bubble position.
One bolt to tighten for easy install and setup.
Increases long range accuracy