I am looking for a scope for my CZ527 Carbine in 7.62x39. I wanted something in a fixed 4 power or possibly the Nikon Prostaff 2-7 as long as it is somewhat compact. Does anyone have any opinions on any of these scopes? I have a buddy that has the Nikon Buckmaster 4x40 and seems like a very nice scope, but I didn't really want to have the same thing as him and was wondering how the Weaver K4 compares since they are close in price. Thank you in advance for your help.