Neo (Keanu Reeves) opens up a GE M134 Minigun door mounted on a Bell 212 helicopter while rescuing Morpheus. According to armorer John Bowring, they were firing the gun half-pace at 3,000rpm but it was capable of 6,000rpm.
In the opening scene police burst in on Trinity (Carrie-Anne Moss) with Glock 17 pistols drawn. These are 3rd Generation models, which were pretty new at the time the film was shot (1998).
Trinity (Carrie-Anne Moss) carries a pair of Beretta 84F Cheetahs as her sidearms in the film. These were selected because Ms. Moss has considerabley small hands and full sized Beretta 92Fs would be gigantic in her hands.
Apoc (Julian Arahanga) gives Neo (Keanu Reeves) his Zastava CZ99 pistol as they try and escape an Agent-led SWAT attack after visiting the Oracle. The weapon is a CZ99 and not, as has been written previously, a SIG-Sauer P228; some of the weapons rental invoice documents published on Propstore.com have confirmed this. The CZ99 is a Yugoslavian-made pistol which is based on the P220 series, but is actually a very different weapon.
Neo (Keanu Reeves) takes at least four pairs of Beretta 92FS pistols with him on his mission to save Morpheus (Laurence Fishburne), because for some reason he sees more logic in carrying eight pistols instead of just one or two with spare magazines to reload.
In the lobby shootout scene, the majority of the soldiers Neo and Trinity face up against are armed with M16 (SP1) rifles with slab-side recievers. The M16s used in this scene are a mixture of rifles with 3-prong flash hiders and rifles with M16A1 "birdcage" flash hiders. Neo uses two of these M16s during this scene, one while cart-wheeling across the lobby, another while on the roof.
During the lobby scene, Neo and Trinity both use Micro Uzis, Trinity using one to kill one of the first guards and Neo using two to keep the soldiers behind cover.
Apoc (Julian Arahanga) carries a Cobray M11/9 converted to full-auto with a thread protector, and is famously seen firing it to lay down cover fire while he and the others are fleeing from the SWAT team (you can tell it's a Cobray M11/9 and not an original Ingram MAC-10 because the back of the receiver is elongated).
Mouse (Matt Doran)'s pair of shotguns are custom-built cam-operated electric driven automatic 12 gauge shotguns with 25-shell cylinders and a fire rate of 900 rounds per minute. They were crafted by John Bowring, lead armorer of the film. As an inside joke, Bowring named the guns "Andy" (serial no. A1169 - Leetspeak for Andy) and "Larry" (serial no. L2779 - Leetspeak for Larry) after the Wachowski brothers, the writers and directors of the film. It can be assumed in the movie world, Mouse designed these shotguns for himself like he designed the woman in the red dress.
In the lobby shootout scene, a number of soldiers are armed with Franchi SPAS-12 shotguns, some of which are commandeered and used against their original owners by Trinity. The versions used by the soldiers have a solid fixed stock/pistol grip combination.
The SWAT team that breaks into the apartment building during the "deja vu" scene are armed with Australian Automatic Arms Leader T2 MK5 assault rifles (the Semi automatic version known as the SAC). (although the weapons are never shown clearly on screen, this has been confirmed by the rental invoices from Propstore, which also has one of the rubber AAA carbines on sale). The Leader is loosely based on the Armalite AR-18 and was planned to be the next service rifle of the Australian Army, but the rifle lost out to the Steyr AUG during the Australian Army's service rifle trials. The versions used in The Matrix are the "Commando" version which have 11.5-inch barrels; the weapons are also fitted with large tactical flashlights and laser sights. The use of an Australian weapon in this case makes sense, as most of this was filmed in Syndey, Australia.
Switch (Belinda McClory) is seen carrying a stainless steel Browning Hi-Power with adjustable sights in .40 Smith & Wesson caliber as her weapon of choice, first holding Neo at gunpoint with it while Trinity removes the "bug" the Agents planted in him, then using it to lay down cover fire along with Apoc while the others escaped the SWAT team, taking out several SWAT members in the process.
