www.airgunnation.com 
This Holosun, HS507COMP CRS 2 MOA Dot & 8/20/32 MOA Circle, is the best choice for the pistol. The only exception is the circles don't meet up at the bottom for more precise aiming at longer ranges. It was my second choice of dot sight based solely on cost ($150 vs $400). I ended up getting a Burris FastFire3 with 3 moa dot because of the size of the dot, they are parallax free, the additional picatinny rail mount included, and the Burris forever warranty. Midway USA has great prices on them if you are interested.Folks, I am pretty green on red dots and could use some input. I was planing on ordering the new Holosun HE507COMP-GR
But just learned of a Primary Arms version that @Nutcracker mentioned in another thread. Looks like the HE507C-GR-X2
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DetailsThe Holosun HE507C-GR-X2-ACSS is a new generation of pistol red dot sight packed full of features like the multiple reticle system, solar failsafe, and shake awake technology to ensure your reflex sight is always operational when you need it. On top of the two battery-saving techniques...www.primaryarms.com
I think the vulcan reticle would make for better guesstimation holdovers, and I like some of the other features. The HE507COMP looks to be a new release according to the Holsun site. Is there newer improved beneficial updates to choose the COMP version over the HE507C?
Is there a better red dot compatible with the M0ist0ne mount?
Thanks much!
! Although I don’t have it yet, I decided to research some optics options and ended up purchasing some. My original plan was to get just a red dot sight. I went with one that is rail mounted and not one that would need a mount to attach at the rear of the pistol just because I didn’t want to have to buy the mount and because they have a little bit of a smaller window. This is the sight that I ended up buying:
!
Liquid Lunch-Ha! The guy who designed the trigger guard owns the patent on the brass knuckle.
An optic without magnification, like a reflex sight, will have long (unlimited) eye relief good for a handgun. Adding magnification will reduce the eye relief & won't work well with a handgun unless you are into the "Taco Hold". IMO, if you want an optic with magnification, you would be better off with a handgun scope specifically made for a handgun having long eye relief.According to UPS, I will receive my GK1 tomorrow
VOTATU RMD502 Multiple Reticle Red Dot Sight
When it arrived, I took it out of the package, turned it on, and looked through it. It looked bad—so bad, in fact, that I initiated a return through Amazon. After doing so, I did some research and, long story short, I ended up cancelling the return when I learned about the effect of astigmatism on red dots. After doing some more research, I decided to buy a magnifier because many people with astigmatism had stated that a magnifier rectified their blurry red dot problem completely. This is the magnifier I bought:
VOTAVOTATU RMD502 Multiple Reticle Red Dot SightTU M3X Red Dot Magnifier
I purchased this magnifier, first and foremost, because it has very positive reviews for its price; and secondly, because it is from the same company as the red dot, and I just like things to go together. When the magnifier arrived, I immediately checked the red dot through it and it was perfectly crisp. This is a screenshot of a manufacturer’s video from Amazon that allayed any fears I had of the magnifier not lining up with my red dot:
View attachment 407989
Also, for anyone who’d like to know, I am using these for mounting to the GK1’s dovetail because the optics are designed to fit picatinny rails:
Higoo 11mm Dovetail to 20mm Picatinny/Weaver Low Pro Snap-in Rail Adaptor
I will hopefully soon be posting pics along with reviews of everything I bought. If anyone has experience with these products, please share your experience and opinion of them. As always, any helpful comments or feedback is greatly appreciated
My original intention was to buy only a red dot but my astigmatism is mostly why I got the magnifier. I know it’s not ideal for a pistol but I don’t mind holding it close. I’m not going to be using it in “combat”. I’ll probably be sitting for shooting at any distance greater than 50 feet. Also, I want to have the red dot for when I get new glasses. Hopefully I won’t need the magnifier to sharpen the reticle when wearing them. But at least I’ll have the option to use it for when I want to challenge myself for some fun long shots.
! I’ll post an update when I’m able. Just what did I state that is not true? Get your calipers out and measure the distance of barrel center to sight center. In every case a given sight system will sit higher from the barrel center line than that same sight on an 11mm rail. The greater that distance, the more hold under is required at short distances. In the case of SeeAll sights, just like open sights, the system blocks the target view below the sight line. This is why open sights are generally adjusted for a 6 o"clock hold. With a PB pistol, this is not too much of an issue because there is virtually no bullet drop at pistol distances. That is not the case with an Air Pistol.
Steve-l wrote -
