If you are looking for the gallery, see SIG-Sauer P226 Gallery.
In Season 1 Episode 4, Vatos, Rick Grimes (Andrew Lincoln) handles a black SIG-Sauer P226 as he, Daryl Dixon and T-Dog load up from the bag of guns as they prepare to confront the Vatos gang. It appears he may even have it tucked in the back of his belt during the confrontation later at the small of his back in addition to the Colt Python in his holster.