When the robbers first take over the bank, the security guard Henry (Adam Kroloff) has a Smith & Wesson Model 10 HB revolver, which is quickly taken from him by "Mr. Pig" who then holds it on the other bystanders in the bank along with his MAC-11, though the revolver disappears after the first episode.
The Pittsburgh Police negotiator, Captain Horst Cali (Donnie Wahlberg) carries a stainless steel Smith & Wesson Model 36 revolver as his sidearm, in contrast to his fellow officers who carry Glocks. He rarely uses it, preferring to employ his negotiating skills instead. He most notably has it drawn when chasing Mr. Wolf through the tunnel beneath the bank as Mr. Wolf flees back inside.
Pittsburgh Police officers and SWAT members responding to the robbery and FBI Agent Carrie Southwell, who is fatally wounded during the first shootout, can be seen wielding 2nd and 3rd Glock 17 pistols. "Mr. Wolf" can be seen holding a Glock in promotional material as seen above, but never uses one on-screen.
One of the hostages, Leroy Barnes (Ryan Sands), can be seen hiding a stainless steel Walther PPK in a potted plant in the bank. He later recovers it and holds it on "Mr. Rabbit" when the hostages make an ill-fated bid to overpower their captors, forcing him to drop his weapon, then pistol-whipping him with the pistol. He then loses it when the attempt fails, "Mr. Rabbit" taking it from him.
When Deke Quinlan and other members of Platoon 10-13 are forming a plan to get the robbers out of the bank from a nearby building, Leon (Nick Koesters) can be seen be seen brandishing a two-tone Desert Eagle. It can also be seen on the table as they're talking.
A Ruger KP94 can be briefly seen in the hands of Derzius (Joshua Elijah Reese), one of the 10-13 members that tried to help in the escape in the subway.
One of the 10-13 members, Big Stan (Jeff Hochendoner) has a Wilkinson Arms Linda Pistol during the subway shootout. Ray Wilkinson of Wilkinson Arms made both pistols and carbines named after his daughters. It seems to have the flash hider from the Terry carbine, though.
During the final shootout, Cpt. Cali gets ahold of a Beretta 92FS from one of Deke Quinlan's slain henchmen, having lost his revolver when he was taken with the robbers. He uses it in a shootout with Deke Quinlan, killing him with it and rescuing his wife who was being held hostage, and then in the final faceoff with Mr. Wolf, fatally wounding him with a shot to the chest from the Beretta.
When approaching the ambulance used by the robbers to escape the bank, a Pittsburgh P.D. officer can be seen with a Smith & Wesson 5904 at the ready, one of the few police personnel besides Cpt. Cali to use a handgun other than a Glock.
After leaving the bank, "Mr. Wolf" procures a stainless steel Jericho 941, using it as a backup to the Steyr AUG in the final shootout, and the ensuing faceoff with Cpt. Cali, using it to force Cali to fatally shoot him, calling Cali's act "a righteous kill". (This is a reference to the fact that both John Leguizamo, who plays Wolf, and Donnie Wahlberg, who plays Cali, were partnered as detectives in the Al Pacino/Robert De Niro film Righteous Kill.)
The robber Albert "Mr. Pig" Roman (Frank Grillo) can be seen carrying a MAC-11 as his weapon of choice through most of the series. One of the hostages, Ashley Beck (Christine Evangelista), gets hold of it when she and some of the other hostages make a bid to overpower their captors, but loses her nerve when faced with the prospect of actually using the weapon and ends up letting "Mr. Pig" retake it, foiling their plans.
If this gun is anything like the rest of the assault weapons used on the show, it's not a real Ingram. More likely one of the RPB MAC clones made in the early-80s (before the Cobray M11/9 was introduced). -MT2008
The leader of the robbers, Jake "Mr. Wolf" Mendez (John Leguizamo), can be seen using a Heckler & Koch SP89, a civilian variant of the Heckler & Koch MP5K with two magazines taped together 'jungle style'. One of the hostages named Rocko (Adam Cantor) is seen with it when disguised as "Mr. Wolf" when it seems like Ashley Beck is going to be released, and later gets hold of it briefly when some of the hostages stage an ill-fated bid to overpower their captors.
The robber Marshall "Mr. Cat" O'Brien, Jr. (J.D. Williams) can be seen wielding a Micro Uzi with a custom shoulder sling. One of the hostages, an elderly man named Bernard (Bingo O'Malley) later gets a hold of the weapon in an ill-fated attempt to overpower their captors. Another Micro Uzi can be seen in the hands of one of the men brought in as backup during the final shootout, holding Cpt. Cali's wife Lucy Cali (Laurel Brooke Johnson) at gunpoint with it before being killed by Quincy.
The robbers' getaway driver, Deke Quinlan, (Steve Cirbus) can be seen using a two-tone Kimel AP-9 during the first shootout, and can be seen with it on the bed of his apartment while watching the standoff on television. He has it again during the final shootout, last seen with it after being killed by Cpt. Cali.
The robber Henry "Mr. Rabbit" Roman (Jeremy Davidson) and Pittsburgh Police officers responding to the robbery as well as one of the armored van drivers can be seen using Remington 870 shotguns. "Mr. Rabbit"'s shotgun has a pachymar revolver-style pistol grip in place of the stock. He is last seen with it when his body is found in the bank, having been killed during a brawl with "Mr. Wolf" when the two came to blows about how to resolve the siege.
Pittsburgh Police officers responding to the robbery and an armored van driver can be seen using Colt AR-15 A2 HBAR rifles, the civilian version of the M16A2, during the first shootout. Another AR-15 A2 can be seen in the hands of one of the men brought in as backup during the final shootout, but he is taken out by SWAT before he can use it.
Pittsburgh Police SWAT officers responding to the bank robbery can be seen carrying M4A1 carbines fitted with various accessories including RIS foregrips and Surefire Universal weaponlights, though some of them have a regular handguard and Surefire M500AB forend weaponlight. Due to the heavy SWAT presence, the weapon is one of the most common in scenes outside the bank. It should be noted that the M4A1s used in the show for non-firing scenes appear to be airsoft M4A1s. However, every time the "M4s" are fired, they magically turn into Colt AR-15 Sporter 1 carbines, as described below. Yet more evidence of this show's tendency to use older model civilian "assault weapons" (many of which are no longer sold/manufactured in the United States) for all of the characters - "good" guys and "bad" guys.
In scenes where Pittsburgh P.D. SWAT officers fire their M4A1 carbines, the weapons switch to Colt AR-15 SP1 carbines with 16" barrels, fitted with Surefire M500AB weaponlights. The weapons are fired exclusivly on semi-automatic, though it still doesn't help the police's abysmal accuracy.
The robber "Mr. Mouse" (Leo Fitzpatrick) can be seen carrying a Norinco Type 56-1 with an AKM-style slant compensator as his weapon of choice. The Type 56-1 is the only fully-automatic weapon in the entire mini-series, as the robbers carry semi-auto subgun clones and the police have semi-only AR-15 varients. However, the Type 56-1 only fires full-auto during the first gunbattle before its users switch to semi, potentialy to save ammunition. "Mr. Pig" later uses it briefly after "Mr. Mouse" becomes overcome with delusion due to infection of a gunshot wound he sustained during the first shootout. One of the men brought in as backup during the final shootout can also be seen with a Type 56-1 before being taken out by SWAT.
On a couple of occasions, the Type 56-1 used by "Mr. Mouse" will occasionally switch to an AKS-47, distinguishable by the open front sight design and the lack of the AKM-style muzzle brake seen on the Type 56-1.
In the final episode, Mr. Wolf can be seen with a Steyr AUG, loading it while riding with Cpt. Cali to the site of the final shootout wherein he runs out of ammo and abandons the weapon, but not before wounding the SWAT commander, Lt. Connie Reubens (Michael Hyatt) with a shot to the shoulder from the rifle.
During the final shootout, Mr. Cat can be seen using a Heckler & Koch USC in place of his Micro Uzi. He uses it to try to provide cover fire so Wolf can escape, but is ultimately gunned down by the police.
The only robber to survive the final shootout, "Mr. Pig" can be seen with a semi-automatic civilian carbine version of the Daewoo K1A1 in place of the MAC-11 he carried before, discarding it when he boards a passing train, making him the only one of the robbers to escape.
One of the Pittsburgh Police SWAT snipers named Quincy (Michael K. Williams) can be seen using a Blaser 93 sniper rifle with a Harris bipod. He gets to fire it twice in the last episode, killing one of the thugs brought in as backup who is holding Cpt. Cali's wife hostage at the start of the last shootout, and another thug brandishing a Norinco Type 56-1.
In one episode, a hitman hired by Alan Beck (Tobin Bell) can be seen assembling a suppressed Ruger All-Weather Ruger All-Weather Mark II M77 sniper rifle with the metal parts parkerized (as opposed to the normal stainless finish) that he had been carrying in a suitcase. He fires it on one of the robbers who turns out to be Rocko disguised as "Mr. Wolf", hitting him in the ear before other members of Platoon 10-13 operating outside the bank can kill the sniper.
