Shake awake works great. This dot truly beats my venom hands down. The shake awake helps the battery last longer.

If your looking for quality, style, durability and value this is a good first dot or budget dot. I've not been disappointed. Cannot recommend this product enough.

Fits psa dagger compact perfectly. Fits rmr cut and does not come loose with a bit of loctite. Put one on my glock 21 gen 4 with the rear sight adapter kit.

At close ( 7 to 10 yds ) range the 3 moa works well for me. The poi seems very stable, after cleaning etc. Mounted slowly like directions state, hasn't lost zero yet.

Just fiddling with the sight by itself, there are a few different brightness levels. Doesn't fit but rmr cut glock 9mm. Do not recommend for anything but maybe airsoft or throwing at trash cans.

The holosun he507k-gr x2 / hs507k x2 is an exceptional reflex sight. It offers unmatched versatility, durability, and performance.

Red dot reticle is far too high and out of view unless i point the * downward. My dot randomly get dimmer or brighter without me touching anything usually gets dimmer.

Hope they can straighten this out. Their rma process is trash. Completely unacceptable. No response whatsoever.

This unit was replaced by the service dept with a 507k at my choosing. The manufacturer claims battery life is “up to 50k hrs’. That equals 2073 days or 5.