If you have a Serial Number it may help narrow things down. For a small fee SiG will give you the history of a specific firearm, you will need the Serial number. If it's a P226 the general specs are readily available on the internet as well as SigArms.com. Do you know what caliber was purchased for the OSHP contract? The P226 is onluy manufactured in 3: 9mm, .357SIG and .40S&W.
If they are Department turn ins, they will be CPO (Certified Pre Owned). Returned to the Sig Sauer factory in Exeter, NH. Fully disassembled and inspected, any parts requiring replacement are and the gun is returned to the commercial market as CPO. Generally 30-40% less than NIB for the same model. They come with a 1 year warranty instead of the Limited Lifetime one a NIB comes with. In some cases, there will be some guns purchased that never get issued or have very low round counts.
What "specs" specifically are you trying to find?