If you can shoot groups with a red dot your a better man than me. I tried again yesterday, on target? Yes. Groups? Not so much no.
As for the sights it will all depend on your intended use and range. If there is 15 inches POI change with one click at 200 meters call it 7 inches at 100 and 3 and a half at 50 and a little under 2 inches at 25. Is that sufficient? Only the shooter knows.
Aside from the course adjustments those sights are reliable and repeatable.
As for the sight in the EBay link, I've never seen them before. Are they TC as the ad claims? Dunno, doubt I've seen everything TC has made but I've sure seen a lot of it and I don't recognize those sights.
As for the sights it will all depend on your intended use and range. If there is 15 inches POI change with one click at 200 meters call it 7 inches at 100 and 3 and a half at 50 and a little under 2 inches at 25. Is that sufficient? Only the shooter knows.
Aside from the course adjustments those sights are reliable and repeatable.
As for the sight in the EBay link, I've never seen them before. Are they TC as the ad claims? Dunno, doubt I've seen everything TC has made but I've sure seen a lot of it and I don't recognize those sights.