i brought a cobra night vision kit for my AAs410 kit is an awsome bit of kit for the rats last year i shot 276 this year i shot 582 well worth it the farmer has been really chuffed with my kill rate this year the secret is bait and getting a good sniper spot go for it but do your homework and get the right scope for you not just whats the cheapest my kit cost me £600 and i know some one who spent £120 and its crap compaired to mine the farmer even borrowed mine for foxing and had sucess.