On the UltraDot check out Ultradotwest.com. I have bought several from them.
I have the Tactical UltraDot 6 on my AR15-22LR. Works great, but not a handgun optic.
I recommend the new 6 Series 30mm MatchDot II over the Plain Jane 30mm UltraDot. The main improvement for me is the selectability of Dot Sizes. Going to a 2 MOA early and late helps with Bloom. I have both, and my next order will be another 30mm MatchDot II for my 357 Maximum Contender barrel.
Bob
Last edited by Bob R; 05/31/2016 6:14 AM.