Thread: Red Dot Sights

Any of you knowledgeable chaps (and chapesses) know if there is a red dot sight available with the dot smaller than 1moa.
My mate has a Henry lever action in .22 mag and because of his 68 year old eyesight, the open sights are blurry. He's put a rail on it and a scope but the scope is a complete waste of time as it sits way to high above the stock, and if you use low mounts then the hammer is inaccessible.
I suggested a red dot but most seem to have a dot that would virtually cover a rabbit (or similar) at 100 yds, which would be hopeless
Thought I saw one on here that was on a .308 for bush hunting, but may have my wires crossed.
Any thoughts.......??