The scope bubble level attaches to standard Weaver/Picatinny rail base 7/8". This scope bubble level helps you ensure that your rifle and scope are perfectly aligned. This optics bubble level Improves your accuracy by ensuring the rifle is level before each shot. It is machined from aluminum with a White line on housing for quick reference. Bubble Level Fits 7/8" Dovetail Weaver Base Rail. Add this bubble level to your gunsmithing tools and scope accessories. This bubble level is a simple way to make sure your scope is level at the range for longer range shooting. The body is made of machined black anodized aluminum.
Note: Fits Weaver-Style Base Rails 7/8". You May Want To Buy One For Each Rifle & Shotgun You Have.