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HOLOSUN Dot/Shake Awake Micro Sights
The 403B is a small compact micro red dot optic. Employing Holosun's LED technology, the lifetime for one CR2032 battery can be up to 5 years. This optic features Shake Awake technology that powers the optic on with slight movement. It may be installed on various firearms and is compatible with standard mounts.
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An analysis of AR-15 optic mounting heights, how height-over-bore affects zero offset and holdovers, and the tradeoffs between absolute co-witness, lower-third, and taller mounts.
6 min read
Guide
A high-level overview of the main optic categories, explaining tradeoffs between speed, versatility, and precision for AR-15 builds.
7 min read