The Modified Kimber Gold Combat II used by Stallone's character Barney Ross in The Expendables.
Ross (Sylvester Stallone) also carries a pair of Modified Kimber Gold Combat II pistols as his primary sidearms and weapons of choice, which he typically fires and reloads at rapid speeds. In fact, thanks to the rather crude overuse of sound effects, the guns are often implied to be firing far faster than what is actually visible on the screen. A more detailed description of the weapons can be found here. Information and images from IMFDB.org.
Ross rapidly reloading his single gun.
Ross dual wielding the guns.
The Modified Kimber Gold Combat II in the custom case inside Ross' truck.
Ross in The Expendables 2.