Which model Browning Buck Mark?

[slowr1der]

I am attempting to order parts from Numrich for a friend that doesn't have a computer. He has an original style Browning Buck Mark that was made in 1990. It has a 5.5 inch slabside barrel. On Numrich's site they list a Buck Mark and a Buck Mark 5.5 and list different part numbers for each. He just needs a buffer. Does anyone know which I should order?

 

[gb6491]

Buck Marks made prior to 2000 use the black buffer (B5152501 Buffer Type 1). I don't know why Numrich has it listed with two different SKU numbers (SKU: 536100A or 536100B). Browning's parts list has only the black and the white (2000 and later) buffers listed. http://media.browning.com/pdf/parts/2008_browning_parts_pricelist.pdf
Regards,
Greg