Metal Spirit Bubble Level

Metal Spirit Bubble Level for 20mm 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
Anit-cant - make sure your scope is absolutely level
Can be used on real fire caliber as well as air rifles
Shock resistant
Compatible for 20mm lead rail

Package Includes:
    1 x 20 mm Level Bubble
    1 x Allen key