No. Cheap and quality optics do not go hand in hand. They're are some options that are a better value than others, but nothing that I would define as "cheap". Your going to have to spend >$100 to get something that is remotely reliable.
I like the vortex products. They are relatively cheap, great warranty and work well
The cheapest reflex sight I've seen good things about is the Burris FastfireII.
As soon as we get a definition of cheap we can be of further assistance.