I put on my Springfield Armory Echelon. Super easy to install. Absolutely love it. Thanks FREEDOM Gorilla.

I just installed the 508T on my PDP Pro SD and it’s looks great! I have the 507C,507K and the 407C and the 508T is the best as it gets!

After watching the reviews and how you guys explained the different holosun optics I felt very comfortable making the purchase from your website. I'm very happy with my 508T

First I want to describe my experience with both red and green colored dots with astigmatism. With red, I definitely starburst a bit more compared to the green. However, during day time shooting neither of the 2MOA green dot or my RMR 3.25MOA red dot starbursts at all if set at the right brightness. If it was too bright, both colors will starburst, red just more than green.

Great little sight, ordered it because I had returned my 507c (Red). With astigmatism the red definitely starbursts a bit more for me. The green dot however still does starburst at night time, just not as much and more manageable.

Would recommend for someone who thinks they have astigmatism to try out the green colored sight. If you choose to try out the red colored sight and decide you don't like it because of the starburst or whatever the reason may be. Freedom Gorilla's return process is super duper easy and fast. Would order again if I purchased another handgun.