Trijicon Cantilever Mount

No, this specific model is precision-engineered exclusively for 34mm scope tubes. It will not securely fit a 30mm tube without the use of aftermarket inserts, which are not recommended for maintaining zero.

A 20 MOA cant angles your scope downward, which effectively shifts your elevation adjustment range upward. This is essential for long-range shooting, as it allows you to dial in elevation for targets at greater distances without running out of internal adjustment in your scope.

Yes, 1.535 inches is widely considered a 'lower 1/3' or 'absolute co-witness' height for many AR-style platforms. It provides a comfortable cheek weld for most shooters while ensuring enough clearance for the objective lens of your scope.

The anodized finish is highly durable and resistant to corrosion, so it requires very little maintenance. Simply wipe it down with a clean, dry cloth after use to remove debris or moisture, and occasionally apply a light coat of gun oil if you are shooting in particularly harsh or wet environments.

While this cantilever mount is primarily designed for AR-style rifles to provide the necessary eye relief and height, it can technically be mounted on any rifle with a Picatinny rail. However, you may find the cantilever offset unnecessary or awkward depending on your specific rifle's action length and eye relief requirements.