An engraved nickel Colt MK IV Series 80 with pearl grips is seen in a gun cabinet in 'Sex & Taxes' (S3E19). A Commander (4\" Barrel) version of the same pistol is seen tested by Eric and Calleigh in '10-7' (S3E24).
A Ruger GP100 (with blued finish, 3 inch barrel, fixed sights and \"Lett\" grips) was put to Calleigh Duquesne's (Emily Procter) head in '10-7' (S3E24). Calleigh and Eric later test many pistols, including the Ruger, to find which pistol Calleigh was threatened with. The revolver is described as being rare which is still an endless source of amusement for Ruger owners. Later, a Detective (Holt McCallany) commits suicide with his Ruger GP100. 59ce067264