Lone Star Precision Angle Cosine Indicator & Bubble Level

Bought from Amazon, received and mounted up today on my Hawke Sidewinder Tactical 6.5-20X42 20 1/2 Mil Dot 30mm tube on my Daystate Air Wolf MCT Tactical. Comes with spacer for 1" tubes. I used a bubble level on my scope rail to level it on the scope, it has a set screw to adjust level in the extended position. When it's extended, you can see it out of your peripheral vision while looking through your scope without changing your cheek weld.

Shows accurate level when folded and extended. Inclinometer has degrees and cosine markings. Very well made, I'm liking it already.

It also has a cutout window to see the parallax settings on your scope (left turret).
If you do a lot of shooting at angles (hunting/pesting targets in trees, on roofs/silos, etc) then this is essential piece of kit.




 
Here's a side view to show sidewheel clearance:

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