Viridian RFX Green Dot Reflex Si... vs HOLOSUN HE507K-GR X2 Red Dot Ref...

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.

This is the best green/red dot i have ever tried. The reticle is sharp and quite useful. Normal red dot optics become a starburst for me due to my astigmatism.

I’ve tried a romeozero and a viper, both are a giant blur or starburst. Plinking cans at 25 yards is fun. I have a he510c mounted on a cz scorpion evo and like it a lot.

The only complaint i have with it is that it doesn't automatically adjust for day/night shooting. The same goes for switching back and forth from night to day. Has the shake awake fuction which i like when you adjust windage or elevation you hear clic...  Read More

As advertised perfect new condition. Came in the factory sealed box as expected. Will definitely be buying again.

This optic is by far the best value for the money, imho. One gripe about the lowest time it is possible to set for the optic to auto turn off is 10 minutes. Overall, it’s a great optic.

The he507k-gr x2 is not worth the issue to return. It is also missing the adjustment tool. This review is based on another amazon review and some other forums posts online.