Metal Spirit Bubble Level for 20 mm Picatinny Weaver Rail Rifle Sight Scope Mount

• Attaches directly to weaver/picatinny dovetail to ensure bore and reticle alignment at a glance.
• Can be place before, after, or under the scope.
• Anti-cant - make sure your scope is absolutely level.
• Can be used on real fire caliber as well as air rifles.
• Shock resistant. Compatible for 20 mm lead rail.

• Item Reference: B07JKQVR8Q 0767344373688 767344373688