Sights for a BuckMark .22 Target rifle

I'm looking for the most precise sights possible at the maximum effective range of the rounds. I was thinking peep and tang sights because I like them, but if a scope would be far superior at a further range I would happily consider that. Any recommendations? Here is the rifle i am planning on getting.

http://www.ableammo.com/catalog/product_info.php?products_id=1401

This but with the barrel in stainless.

Thanks.