go to somone in your area who is a rep and show them your id. the type of scope the cf use is the elcan SpecterOS3.4
http://elcan.phpinternet.com/www/SPECTER_0_0_Index.htm
the only place i have seen the sights sold that donot have depleeted trintium is hunters sporting goods in surrey bc i think they sell them for around 800 cad.
or you can buy the airsoft version here
http://www.airsoftsupplier.com/produ...f53aed8faa7f42
dont have one so i dont know how well it is built but arinies review looks prety good