I had a 40mm red dot with no magnification. make sure the light is adjustable, in certain light conditions they will blind you and in others you will not be able to see the dot.
It was a really quick way to accire targets. However,
I will tell you what an old man in the woods near Le Roy Michigan told me, "your going to go hungry hunting squirrel with a .22 hangun kid"
He was correct.