NZ marked sling...too good to be true?

[mnmkeller]

So this is billed as authentic but it looks a bit "surspicious" to me. No tarnish on the buckles especially concerns me. I have and NZ marked Mk1* that needs a proper sling and this would fit the bill but I would rather not spend 70$US to find out its a fake with a nice stamp. I have not seen NZ marked repros before but Im not sure how much stock i put in that.