This is a great red dot if you're not necessarily looking for a mil type repro, much better quality than most repros. The dot is nice and crisp and the brightness variation is good for bright days and lower light applications. It's made for real steel so it will hold zero on a GBB. A BB hit will break the lens (as with all red dots) so some sort of protection is a good idea (I attached a piece of plexi to mine). I didn't care for the trades but they rubbed off easily.
http://www.canadiantire.ca/AST/brows....jsp?locale=en
With taxes it will be over $50 but you won't have to wait for shipping.