All I can say about this Optic is one thing it's awesome. Freedom Gorilla got this out to me right away. My shot has improved 90%. Being able to find the Dot instantly helps with resetting.

Great dot and really helps draw you to the target with the dotted outer ring. Functionally amazing. Only downside is the brightness, I cant seem to get it right when i open in the day time or night time since it powers on at the prior level. Auto adjust would have been nice. I have a SCS320 and that works great.

Installed the Holosun 507 green dot on a S&W 22 Mag pistol for carry when working on the farm, we have a Coyote problem and a 30 round 22 Mag works great. Love the greed dot and the small dot is very good out to 50 yds or more. This is my first experience with Holosun and won't be my last. Great product and the service from Freedom Gorilla is Spot On.

Arrived quickly. Watched their video on how to set up with a laser. Went well!

I personally prefer the ACSS chevron on this, I also have a 507C. Allows you to acquire the dot so much quicker. Smaller footprint of the 507k fits nicely on the EDC