FAST™ COMPATIBILITY TOOL

HEIGHT
2.26″
Select Mount Height
2.26″
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2.26″  Compatibility
Select Both Options Choose a magnifier and optic to check compatibility

Mismatched heights turn a solid optic setup into a guessing game. The FAST™ Compatibility Tool checks your exact setup against measurements we’ve verified in-house, so you know before you buy whether your gear actually works together. Pick your magnifier, pick your red dot and pick your FAST™ mounts — we’ll tell you if they’re going to line up.

All optic and magnifier height measurements have been verified by UNITY® engineers and are based on a sample size of one. Unit-to-unit variation may occur, which can affect compatibility. Optics with larger windows tend to experience less eye box loss in marginal setups.

FAST™ COMPATIBILITY TOOL OUTCOMES ARE DEFINED AS:

YES

Generally, you will notice minimal degradation in eye box from perfect alignment.

MARGINAL

Depending on your setup, you may notice some degradation in eye box.

NO

There is a high chance you will notice significant degradation in eye box and/or lose optic visibility entirely.