Search for G&P aimpoint on ebay. My buddy has a few of them. They are made for airsoft, but they should work fine on a .22. They are suprisingly nicely made.
Yes, if you are a budget person and not shooting heavy recoil, get an Aimpoint replica.
I held in one hand an Aimpoint replica (the G&P or whatever) and in the other hand I held a real Aimpoint ML-2 off a buddy's AR. I asked my other friend who would not be biased towards one to look through both of the scopes, with both on their brightest setting in daylight, and to tell me which one looks to be the best sight in his opinion.
He sat there looking through each one and comparing them, and he could not tell a difference between the two. He told me that if he had to determine which one was brightest, it was the one on the left. The one on the left was the replica Aimpoint.
My buddy who owned the sight was pretty upset about that. He mentioned that his does have the nightvision setting (an invisible dot in the daytime), which the replica did not. Indeed, it does have the NV setting if you need it. Most people do not.
People tell me, "oh, but the Aimpoint has superior optics..."
The three of us admitted that day that there is no difference in optical quality between them when you are looking through the sights. You may pay for "better optical quality", but our eyes showed us no discernable difference through the unmagnified sights.
I'm not usually one to use lower-quality as a means of comparison or example against the nice stuff. However, these sights have given me a different outlook on how easily I will spend my money on the "nice" stuff. I am a firm believer that Aimpoint could bring us their quality much cheaper than they are, and I feel like if someone is offering me the replica sight for $60, and the Aimpoint for $500, I am getting ripped off by the real deal. Both of them have to carry out very similar manufacturing processes to bring you the parts, and I don't feel there is any way that the real deal costs 8 times as much to manufacture. Holding them in your hands they are identical, with exception of some small parts like zero adjustment parts and seals etc.
Another friend has had a replica mounted on an AR for about 2 weeks now, and shooting targets out to 35 yards or so, it seems to be holding zero very well after removing it with the QR picatinny mount a few times.