if they're cheap enough mate give them a try, remember, the consumer act says if you are not satisfied with a product you are legally able to return it, in original packaging, to the place you purchased for a refund or exchange.
keep your receipt, and make sure it is as new if you do return it, that way you can exchange for something better.
nothing lost. anyone who refuses you this right can be prosecuted by trading standards.
however, i use a number of jsr scopes, which are also cheap, and they are just as good as my tasco and ags scopes.....
IM ACTUALLY BUYING THIS TO REPLACE A TA