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.

It stays in place and has not been affected by cleaning agents like hoppes, ballistol, clp or other gun cleaners. Use a toothpick to apply. It's pretty thick and you dab a lot more than you brush this stuff.

Used for front sight paint on two black front sight blades. Looking through the peep sight on a mini 14. I'm using this glo formula for my gun sights and after doing the light test, i'm sure it'll do the job.

The only downside is it's pricy for the amount you get.

It's bright like a firefly after just a little exposure to light. As one of the other reviewers mentioned, it's best to use a led light to charge the paint.

To activate the paint, it takes a flashlight about 10 seconds shining on each set to make them glow brightly. Glows at night.

Not for gun sights. Need to charge with light then only glows for an hour. After several minutes in the dark, the glow begins to fade and is soon completely gone.