I love Michael Mann’s movies. All of them are great. He’s a guy who goes the extra mile to work out all the little details of the story, both in the dialogue and in the details of the scenes. Among his best movies is Heat (1995) starring Robert De Niro, Al Pacino, and Val Kilmer. This movie features one of the best gunfights ever to hit the silver screen. This scene, a fighting retreat from a bank robbery gone wrong, sees robbers McCauley (played by De Niro) and Shiherlis (played by Kilmer) endeavor to fight off the cops (led by Pacino as Det. Hanna) using Colt Model 733s converted to fully automatic.1
The Colt Model 733 is one of the models that falls under the umbrella term “Colt Commando”, and is based off the old-school CAR-15 projects that saw service in Vietnam. The Model 733 has a collapsible stock, fixed carry handle with A1-pattern sights, 11.5″ barrel, and a carbine-length gas system. They fire the standard 5.56 mm round. These are converted to be capable of fully automatic fire,2 and this is used to excellent suppressive effect.
If you’re expecting lame, cheesetacular gunplay, you’ve got the wrong movie and the wrong director. Mann gets his stars some real weapons training, so they look like they know what they’re doing. And I can find exactly zero, yes zero, faults with the gun handling in this film. Reloads are accomplished using good technique. Guns run out of bullets appropriately. Thirty round magazines hold thirty rounds, not 300. And De Niro and Kilmer fire their weapons in nice, controlled bursts. There’s even a great bit where De Nero, while carrying a duffelbag full of money on his back, supports a wounded Kilmer with one arm, and keeps shooting his carbine effectively with the other.
McCauley and Shiherlis conceal their Colt 733s under their extra-baggy 90s suits with the help of bungee slings. And yes, they’ve got a vest under the suit too to hold a whole bunch of magazines. The (converted) 733s provide massive amounts of suppressive firepower, and are vaguely concealable. At least concealable enough to let them take up positions in the bank without hassle. And the firepower means they can defeat police body armor and outrange the usual mid-90s standard patrol officer armament of handguns and 12 gauge pump-action shotguns.
As a brief aside, Heat was used as the model for several actual, real-world bank robberies, including one that would lead to the 1997 North Hollywood shootout, which would see illegally converted automatic rifles outrange and generally overmatch LAPD-issue handguns and shotguns.
Anyway, let’s look at the weapons choice. Remember, it’s 1995. So most modern bullpups aren’t available when you think ‘compact firepower’. The Steyr Aug is available, but due to import restrictions, it’s a lot rarer than the Colt 733. I would guess an Aug would be harder to convert to full auto, though I have no experience doing that with either weapon. Also, go see all of my previous discussions about the handling issues that come up with bullpups. Reloads are way easier with an AR-15. Short barreled AR-15s are still super popular among entry teams. The Model 733 is a fine choice. One I wouldn’t mind having in my own collection for more legal shooting endeavors.