I actually just bought the Canadian tire special Tasco red dot sight with 5 MOA sight and its adjustable . Rated for shotguns and up to .357 magnum apparently .. Ive read mixed reviews on it but i really wanted something cheap to just test the red dot waters , im not really a fan of them and will post back with my review of if it holds zero or not ..
I have this on my 22 and it was hitting 2-3" targets from maybe 60 feet away standing, np. outdoors I have to use the brighest setting #11, otherwise I can barely see the dot. I know a .22 has no recoil but I've taken the red dot off and placed it back on without marking my position and it's held nicely, i like it a lot for $50
I went with a busnell trs-25 3 moa dot on a scout rail. Works for hunting and I can still ring the 300m gong no problem.