Douglas Klump (Rick Gomez) is the first character seen with the Beretta "Auto 9", aka the RoboCop gun. Hartigan (Bruce Willis) later takes Klump's Auto 9 and kills a cop with it at the Roark's Farm. The Auto-9 seen in RoboCop was an actual Beretta 93R, but in the Sin City version of the gun, close inspection of the slide reveals a decocking safety of a Beretta 92FS, while a genuine 93R has a frame mounted safety, meaning this gun is a 92FS mocked up as an Auto 9. It was mentioned in a behind-the-scenes featurette that this particular weapon was used due to writer Frank Miller's involvement in the story for RoboCop 2 and RoboCop 3.
Klump (Rick Gomez) points his Beretta Auto 9 at Hartigan.
Hartigan fires the Auto 9 akimbo along with a Ruger Blackhawk.
|Pistols||Beretta 92FS (mocked up as Beretta 93R "Auto 9") - Colt Defender - Colt Officers ACP M1991A1 Series 80 - Springfield Armory M1911A1 - Walther P22 - Walther PPK|
|Revolvers||Charter Arms Undercover - Colt Detective Special - Colt Python - Ruger Blackhawk - Smith & Wesson Model 19 - Smith & Wesson Model 29 - Taurus Model 85|
|Submachine Guns||IMI Uzi - Intratec TEC-9 - Micro Uzi|