I have one of these scopes, again supplied by XTXair, utterly stunning piece of kit, however as previously mentioned it is only 32mm obj so its low light performance is while good not great.

Now I also have a cheaper Viper with the BDC ret which is 2nd focal and 44mm objective but features the same quality of glass...its just got the edge on low light use...so I'm saving for this one next..http://www.riflecraft.co.uk/products...ticle-104.aspx
I will again order thru Darrin, this scope is 2nd focal but has the awesome ret and IR to boot...however no side parallax so its adjust it and its fixed, which is no biggy to me.

Lifetime warranty on all vortex scopes, fully transferable also...awesome value for money