Nikon Buckmasters 4.5 x 14 x 40 with Mil Dot reticle.

[Heck]

I picked one of these up for about $200 when Sportsmans Warehouse here in NW Akansas was going out of business. I put it on my 700 SPS tacical and love it but am wishing it had target knobs on it. Does anyone know if Nikon can install these for me or if anyone else offers this service?