The Devil's Own is a 1997 thriller starring Brad Pitt as an IRA gunman who travels to New York in order to secure Stinger missiles to use against the British in his native Ireland. While in the United States, operatives arrange for him to live with an NYPD sergeant (Harrison Ford) and his family, who do not know his true identity. This was the final film directed by Alan J. Pakula, who was killed in a freak car accident in 1998.
The following weapons were used in the film The Devil's Own:
NYPD Sergeant Tom O'Meara (Harrison Ford) carries as his service sidearm a Smith & Wesson Model 10 Heavy Barrel with Pachmayr Prsentation grips . One of these revolvers is also used by the Loyalist gunman who murders Frankie Maguire's father in 1972, when he is still a boy.
Smith & Wesson Model 36
Tom O'Meara (Harrison Ford) also carries a Smith & Wesson Model 36 as his backup weapon. At one point, Frankie Maguire takes this revolver from Tom and uses it in the later part of the movie.
SIG-Sauer P226
When Frankie Maguire (Brad Pitt) is visited in hiding by another IRA member, he comes out of his hiding spot brandishing a SIG-Sauer P226.
Browning BDA 380
When Frankie Maguire comes to America under the alias Rory Devaney, he takes along a Browning BDA 380 pistol, which he hides in the same bag with the money needed to purchase the Stinger missiles.
Heckler & Koch P7M8
When the shootout in Belfast ends, the Mi-5 agent Harry Sloan (Simon Jones) kills "Desmond" (David Wilmott) with a Heckler & Koch P7M8 pistol after Desmond refuses to tell him where Frankie Maguire is hiding.
Colt Government Model 380
The angry man (Sixto Ramos) at the site of the domestic disturbance is armed with a small pistol which appears to be a Colt Government Model 380.
After Frankie kills several of his men, Billy Burke (Treat Williams) dives into his car and comes out with a Ruger KP94 pistol, which he uses to shoot at Frankie.
Smith & Wesson 5946
In the climax of the film, Frankie Maguire (Brad Pitt) is seen using a Smith & Wesson 5946 when he confronts Tom O'Meara. The 5946 is one of several authorised pistols for purchase by NYPD officers.
Submachine Guns
MAC-10
MAC-10 machine pistols are used by several of the other IRA gunmen during the shootout in Belfast.
Heckler & Koch MP5A3
The SAS operators who attempt to apprehend Frankie Maguire and his Active Service Unit are all armed with Heckler & Koch MP5A3 submachine guns. There is a continuity error in that the MP5s have the older-style "slimline" handguard when the SAS men are in their car loading their weapons, but when the firefight starts, the MP5s have the newer "tropical"/wide-type handguard.
Assault Rifles
Norinco Type 56-1
A Norinco Type 56-1 (Chinese AKS-47/AKMS) assault rifle is used by Frankie Maguire (Brad Pitt) during the opening gun battle in Belfast between the British Army and Maguire's Provisional I.R.A. Active Service Unit.
M16A1
An M16A1 is used by the IRA gunman "Desmond" (David Wilmott) during the gun battle in Belfast. Another is used by one of Billy Burke's (Treat Williams') men during the scene where Frankie Maguire confronts him.
L85A1
The British Army regulars who are involved in the Belfast shootout are all armed with the L85A1 service rifle.
Shotguns
Remington Model 31 (MGC Replica)
One of the thugs whom Burke sends to Tom O'Meara's house to look for the money that Maguire owes him wields a pistol gripped short-barreled shotgun. Since this shotgun is held in close proximity to an actor's head and never fired, this is most likely the MGC replica of the Remington Model 31.
Ithaca 37
A pistol-griped, short-barreled Ithaca 37 is used by one of Billy Burke's men when Frankie Maguire goes to the warehouse to get the missiles from them. Maguire himself also winds up using this shotgun to kill several of Burke's men.
Machine Guns
L7A2 GPMG
The British L7A2 variant of the FN MAG general-purpose machine gun is fitted to a Saracen APC during the shootout in Belfast.
Trivia
The movie revolves around a plot by the Provisional IRA to acquire FIM-92A Stinger surface-to-air missiles, for which Frankie Maguire (Brad Pitt) is sent to the U.S. to make the purchase from arms dealer Billy Burke (Treat Williams). However, no Stingers ever appear on-screen during the entirety of the film (even though the trailer featured stock footage of a Stinger launcher being used). The only glimpse of the missiles that the viewers ever see are the cases which (allegedly) contain them. However, the cases are marked with "M41" which is the designation for the shoulder launcher for the earlier FIM-43 Redeye, indicating that they are actually cases for these rather than Stingers.