Check the frame
You will have to call Sig Sauer to find out
It was proofed in 2006
It was proofed in 06
1998 or so.
You will have to call SIG
No published sn data.
You will have to call SIG to find out.
8 yrs old
It was manufactured in 1991. German manufactured Sigs have the two letter date code on the underside of the barrel. K = 9 and B = 1. A=0, B=1, C=2, D=3 etc...
To determine the age of a Sig Sauer P229 with the serial number AC17406, you would typically need to refer to Sig Sauer's serial number lookup resources or contact their customer service. Generally, the first two letters of the serial number indicate the year of manufacture, with 'AC' often corresponding to a specific year in the early 2000s. However, for precise information, checking with the manufacturer or an official database would be necessary.
No published sn data that I know of.