Love the shake to wake and only took minutes to zero in at 10 yards. It works as advertised. Shake awake seems good.

Rfx25 uses the doctor footprint and can be directly mounted on your weapon. The qd mount is excellent, i really like qd and this one is one of the best i've used so far.

The rfx series is a good edc option. The instant on feature is now considered by me to be a must have feature, far exceeds my other dots red dot sites, from burris and vortex. Has nv compatible mode.

Tried the used battery again, nothing. Even on the maximum brightness and with a new battery, it's just not enough. Did not hold zero either.

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.