Im in the market for my first real good scope( 4-12x50). Im looking at the Leupy's, Burris and Nikon . My brain is about to overload and a friend of my tells me about a Pentex, I havent seen much on these scopes so I was wondering could you guys give me some kinda feedback on them , will they stand up to Nikon ,Leupy and Burris and whats their warranties like? Thx for any info you can come up with.