Street Kings is a 2008 crime thriller directed by David Ayers (the writer of Training Day and the director of Harsh Times) and stars Keanu Reeves as a veteran LAPD Vice detective who is determined to find out why his former partner was murdered. The film was based on an original screenplay from James Ellroy (the author of L.A. Confidential).
The following weapons were used in the film Street Kings:
After using his purposely-stolen car to track the Korean slavers to their hideout, Detective Tom Ludlow (Keanu Reeves) retrieves a Smith & Wesson 4506 and magazines from a hidden compartment in his trunk. He then single-handedly assaults the house and takes out all four slavers with the S&W. It would appear throughout the film he used the 4506 while on duty but uses a customized Colt MK IV Series 80 for his off duty activities.
Custom Colt MK IV Series 80
While off duty, Ludlow carries a Colt MK IV Series 80 .45 pistol customized with raised adjustable sights, beaver tail grip safety, a combat hammer, extended ambidextrous slide stop safety, extended slide release, beveled magazine well, stainless barrel, and long type combat trigger and is seen using it several times in the film.
After Ludlow kills all the Korean slavers, he looks in their couch and finds a beautiful engraved gold-plated carries a custom Colt Mark IV Series 80 Combat Elite, which he then plants on the unarmed man in the bathroom.
Colt Anaconda
A stainless Colt Anaconda is used by the masked Korean slaver when Ludlow raids their house.
Beretta 92FS
Several LAPD officers throughout the film are seen armed with Beretta 92FS pistols. Capt. James Biggs (Hugh Laurie) is seen with a Beretta holstered when he first meets Ludlow in the hospital.
Beretta 92FS Inox
Washington (Terry Crews) carries a Beretta 92FS Inox as his sidearm. Shortly before the Korean store is raided by the cop killers, Washington draws his Inox on a stunned Tom Ludlow (Keanu Reeves), who, in spite of his original intention of breaking his jaw, had entered the store to warn Washington of the impending robbery.
Kahr M9098 Elite 2003
One of the Korean slavers carries a Kahr M9098 Elite 2003. Only the Elite 2003 has the polished Stainless Frame. The Kahr M9098 Elite 2003 is the smallest of the Kahr 9mm pistols with a 3" barrel. Once Ludlow raids the Koreans house, he takes his Kahr K9, which he had barely drawn before being gunned down, and uses the Korean's hand to fire two shots into the door to look like he shot first.
Glock 17
Detective Diskant (Chris Evans) uses a Glock 17 as his sidearm throughout the film. When Diskant is shot in Freemont and Coate's apartment, Scribble (Cedric the Entertainer) is forced to pick up the Glock but refuses to shoot Ludlow and is gunned down by Freemont.
Freemont himself also carries a full-size Glock model which is most likely another G17. After his submachine gun empties, he drops it and reaches for his Glock before Tom blinds him with his flashlight and then puts him down with his 1911.
Smith & Wesson Model 66
Captain Wander (Forest Whitaker) carries a 2.5" barrel Smith & Wesson Model 66, but we can only see it briefly, during his final confrontation with Ludlow, and it is difficult to vidcap it.
Rohrbaugh R9
When Ludlow and Diskant chase down Quicks (Noel Gugliemi), Ludlow traps him in roof barbed wire and removes a Rohrbaugh R9 which he had hidden in his waist.
SIG-Sauer P239
Coates (Common) uses a SIG-Sauer P239 pistol with a tutone finish during the shootout with Ludlow in his apartment.
Charter Arms Off Duty
Ludlow keeps a stainless Charter Arms Off Duty hammerless snub-nose that he keeps loaded with .38 hollow points. When being attacked by Freemont and Coates in the store, he draws his .38 and fires all five shots, one of which hits Washington in his right shoulder.
Kimber TLE II
Both Det. Dante Demille (John Corbett) and Det. Cosmo Santos (Amaury Nolasco) carry Kimber Custom II pistols fitted with SureFire 310R flashlights. They mess with Ludlow as he crawls away by firing their Kimbers at him, but Ludlow manages to kill and disarm Demille with a shovel and then kills Santos with Demille's Kimber.
Submachine guns
Smith & Wesson M76
A Smith & Wesson M76 or its copy, the M-K Arms MK 760, which has two magazines clipped together, is used by Fremont (Cle Shaheed Sloan) to shoot Washington at the convenience store, and later when Tom Ludlow and Diskant confront the killers at their apartment. The ballistics expert tells Ludlow it was loaded with 9mm FMJs or Full Metal Jackets, meaning simple ball ammo.
M3A1 "Grease Gun"
An M3A1 "Grease Gun" is used by Coates (Common) when he and Fremont participate in the robbery of the liquor store. The magazine is held together with a metal clamp but when he reloads, the magazine is still on the same side. The ballistics expert tells Ludlow it was loaded with .45 full metal jackets, meaning it was loaded with .45 ACP ball ammo.
Heckler & Koch MP5SD6
A Heckler & Koch MP5SD6 is seen on the wall rack in the police armory when Ludlow and Diskant arm up to face Freemont and Coates. In further shots, the integral suppressor is visible.
Shotguns
Remington 870
A Remington 870 with a sawed-off barrel is briefly seen used by one of the Korean Slavers when Ludlow raids their hideout. He manages to hit Tom in the vest with it, before he is killed by Ludlow moments later. The magazine cap clearly shows it is not an Ithaca 37 as it was previously stated, but more likely an 870.
Mossberg 500
Coates (Common) uses a Mossberg 500 with six extra shells in a saddle mount holder during his final confrontation with Ludlow.
Benelli M3 Super 90
Several police officers throughout the film are seen armed with Benelli M3 Super 90 shotguns with saddle mount shell holders and tactical flashlights. Diskant is seen using a Benelli several times in the film as he aids Ludlow during busts.
Benelli M4 Super 90
A Benelli M4 Super 90 is seen on the wall rack in the police armory when Ludlow and Diskant load up to face Freemont and Coates.
Rifles
M1 Garand
LAPD Officers at Washington's funeral perform a rifle volley with M1 Garand rifles.
Romanian AIMS (AKMS)
When Ludlow and Diskant raid Grill's (Jayceon "The Game" Taylor) house, he reaches for an AKMS which based on the stock configuration and furniture, is a Romanian AIMS.
M4A1 Carbine
M4A1 carbine assault rifles can be seen on the rack in the armory when Ludlow and Diskant are suiting up to face Freemont and Coates.
M16A2/AR15 A2
A rack of M16A2 rifles (or possibly AR15 A2s) is also visible in the armory when Ludlow and Diskant are loading up.
Based on the shape of the carry handle, I'd actually say they like more like M16A4s, the carry handles look removable. - Gunmaster45
Unknown AK variant
On the rack, next to the Mossbergs, you can see the distinct wooden forearm and buttstock of an AK Variant.
Heavy Weapons
CAW 40mm Launcher
A Craft Apple Works (CAW) 40mm airsoft launcher is seen on the wall rack in the police armory when Ludlow and Diskant arm up to face Freemont and Coates. While airsoft guns are rarely used in films, a non-focused background shot is usually fair game for them.
Browning M2
Ludlow pretends to sell a Browning M2 heavy machine gun to two of the Korean slavers in order to provoke them into stealing his car and the gun, thus allowing him to track them to their final location. When they first see the gun, they complain how they wanted a machine gun they could carry, not a 120lb machine gun to scratch up his car with.