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Anti-Cant Level Bubble for Scope Tubes
Line your shots up consistently each and every time! The Monstrum Rifle Scope Level Bubble is a tool built to check for proper vertical alignment of your rifle. In uncontrolled shooting environments, it is common for the naked eye to misjudge vertical alignment by 2-3 degrees. A slight cant of 3 degrees can result in your shot being off by three inches at 400 yards and is compounded further at longer distances.
Michael Mayo
Reviewed in the United States on March 7, 2025
Easy to install. Works well and easy to see when shooting.
Kenneth R. Carner
Reviewed in the United States on February 21, 2025
Lite weight but sturdy. Accurate
Richard Darling
Reviewed in the United States on February 2, 2025
Easy to mount yet strong enough and easy to read.
Jennifer McLaughlin
Reviewed in the United States on February 13, 2025
Very handy little device. Shine a light through your scope to project the reticle on the wall, and line the reticle up with a plumb bob, or string with a weight attached to one end, for a perfect, level, optic. Then attach the bubble level to your scope and center the bubble on your leveled scope and tighten it down to lock it in place. Definitely helps to keep your shots from being skewed to one side or the other. Very well made.
Chris Miller
Reviewed in the United States on January 9, 2025
Not going to give it 5 stars and claim it's just as good as the $100+ levels. It's simply not. But from what I see it is sufficient and nicely constructed for the price. I had to trim some of the adhesive out from the back that was overhanging and the glass vial had a bubble (glass from when it was made) stuck to one side. But it fits well, seems fairly secure and in my opinion is one of the better thought out designs. If it was made a little more premium with some additional QC I don't see why it wouldn't be worth $45+
tom
Reviewed in the United States on January 28, 2025
First one was defective no fluid no bubble. Was replaced promptly. Replacement works although the bubble is so large and takes up more space than the large hash marks it falls outside the thick marks on each side making it a bit hard to center trying to see the small hash marks to the left and right of the thick ones.
J. Melton
Reviewed in the United States on December 31, 2024
What more to say? It's reliably Works for me.
MSR Workshop
Reviewed in the United States on December 31, 2024
So I just got this installed on my air rifle and it seems to work great. The hash marks are a little confusing because the white heroes do not lineup with a particular hash mark, so it makes it a little confusing to look at sometimes. It would also be cool if they made an option to have the curve go in reverse so instead of being mounted on top, it would be mounted below.. just an idea. Other than that, Monstrum stuff has always been excellent quality and I have all of my scopes mounted with their scope rings.
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