[[File:Sicario-mk23.jpeg|thumb|none|500px|A promotional picture of Benicio del Toro as Alejandro holding the suppressed Mark 23. The MK23 can be differentiated from the USP series by the raised sections of the front and rear of the slide at the point the sights are situated, from the curved underside of the front of the frame and also the threaded hole in the front of the wider, elongated trigger guard (for installation of a Wilcox or similar locking LAM unit) which you can see clearly in this still.
[[File:Sicario-mk23.jpeg|thumb|none|500px|A promotional picture of Benicio del Toro as Alejandro holding the suppressed Mark 23. The MK23 can be differentiated from the USP series by the raised sections of the front and rear of the slide at the point the sights are situated, from the curved underside of the front of the frame and also the threaded hole in the front of the wider, elongated trigger guard (for installation of a Wilcox or similar locking LAM unit) which you can see clearly in this still.
Also the frame on a Mark 23 is significantly wider before the integrated rail than on a USP. Though it is hard to identify in the film, this enhanced publicity still helps, as well as a brief side shot in the film, detailing the unique Mark 23 trigger guard.]]
Also the frame on a Mark 23 is significantly wider before the integrated rail than on a USP. Though it is hard to identify in the film, this enhanced publicity still helps, as well as a brief side shot in the film, detailing the unique Mark 23 trigger guard.]]
[[File:Sicario 28.jpg|thumb|none|600px|Alejandro ([[Benicio del Toro]]), while carrying his Gen 4 Glock 17, (if you look closely) can actually be seen with the Mark 23 in his vest holster, suppressor attached. Nifty continuity and foreshadowing. This could not have been mistaken for a similar USP, as it has an ambidextrous safety lever, which can clearly be seen on its left side.]]
[[File:Sicario 28.jpg|thumb|none|600px|Alejandro ([[Benicio del Toro]]) aims his Gen 4 Glock 17. At full size, the suppressed Mark 23 can be seen in his vest holster. This could not have been mistaken for a similar USP, as it has an ambidextrous safety lever, which can clearly be seen on its left side.]]
[[File:Sicario-mk23-1.jpg|thumb|none|601px|Alejandro confronts Fausto Alarcon (Juan Cedillo) and his family. Note the older style reflective H&K "Maritime" finish. New MK23s feature HK's standard "Hostile Environment" finish.]]
[[File:Sicario-mk23-1.jpg|thumb|none|601px|Alejandro confronts Fausto Alarcon (Juan Cedillo) and his family. Note the older style reflective H&K "Maritime" finish. New MK23s feature HK's standard "Hostile Environment" finish.]]
[[File:Sicario-mk23-2.jpg|thumb|none|601px|Alejandro brandishes the suppressed Mark 23.]]
[[File:Sicario-mk23-2.jpg|thumb|none|601px|Alejandro brandishes the suppressed Mark 23.]]
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==Smith & Wesson M76==
==Smith & Wesson M76==
A cartel gunman attempts to draw a [[Smith & Wesson M76]] submachine gun.
A cartel gunman attempts to draw a [[Smith & Wesson M76]] submachine gun during the border crossing shootout.
[[Image:M4A1EOT.jpg|thumb|none|400px|M4A1 Carbine with EOTech 552.A65 Holographic sight and SureFire M951XM05 tactical light - 5.56x45mm NATO]]
[[Image:M4A1EOT.jpg|thumb|none|400px|M4A1 Carbine with EOTech 552.A65 Holographic sight and SureFire M951XM05 tactical light - 5.56x45mm NATO]]
[[File:Sicario-M4-1.jpg|thumb|none|601px|FBI Special Agent Kate Macer ([[Emily Blunt]]) armed with the M4A1 with a EOTech 553 and foregrip during the opening house raid operation.]]
[[File:Sicario-M4-1.jpg|thumb|none|601px|FBI Special Agent Kate Macer ([[Emily Blunt]]) armed with the M4A1 with a EOTech 553 and foregrip during the opening house raid operation.]]
[[File:Sicario_301.jpg|thumb|none|601px|Steve Forsing ([[Jeffrey Donovan]]) raises his M4A1 as he unlocks the SUV door. Note that the M4 bolt is locked back. Earlier in the scene shows Steve simply hasn't pressed the bolt catch release button as it is seen sticking out. ]]
[[File:Sicario_301.jpg|thumb|none|601px|DEA Agent Steve Forsing ([[Jeffrey Donovan]]) raises his M4A1 as he unlocks the SUV door. Note that the M4 bolt is locked back. Earlier in the scene shows Steve simply hasn't pressed the bolt catch release button as it is seen sticking out. ]]
[[File:Sicario-M4A1-2.jpg|thumb|none|601px|Steve aims the M4A1 with an EOTech sight and foregrip when confronting a group of hitmen near the border crossing. Here the bolt is closed indicating the rifle is chambered.]]
[[File:Sicario-M4A1-2.jpg|thumb|none|601px|Steve aims the M4A1 with an EOTech sight and foregrip when confronting a group of hitmen near the border crossing. Here the bolt is closed indicating the rifle is chambered.]]
[[File:Sicario-92FS-1.jpg|thumb|none|600px|Delta Force operatives armed with M4A1 carbines open fire on a group of cartel gunmen.]]
[[File:Sicario-92FS-1.jpg|thumb|none|600px|Delta Force operatives armed with M4A1 carbines open fire on a group of cartel gunmen.]]
Kate Macer (Emily Blunt) and other FBI agents carry a third generation Glock 19 as their main sidearm, the former notably using hers during the shootout at the Juárez-El Paso border crossing.
Delta Force operators can be seen carrying Beretta 92FS pistols in their thigh holsters during the shootout at the border crossing. Mexican Federal Police officers carry Berettas in their drop leg holsters during security escort in Juarez. Silvio (Maximiliano Hernández) carries a Beretta in his hip holster when posing as a Mexican Federal officer. A Sonora cartel member is later seen wielding a Beretta onto Silvio.
SIG-Sauer P226 DAK
A Sonora Cartel gunman uses a SIG-Sauer P226 DAK during the border crossing shootout.
FN Five-seveN
Manuel Diaz (Bernardo P. Sarancino) retrieves an FN Five-seveN USG when he is pulled over by the police.
Alejandro (Benicio del Toro) uses a Heckler & Koch MP5A3 with a Gemtech suppressor, KAC railed handguards and an Aimpoint sight. An unsuppressed MP5A3 with a Surefire forend is used by a cartel gunman during the border crossing shootout.
Heckler & Koch MP5SD3
Alejandro's MP5A3 becomes a Heckler & Koch MP5SD3 with an Aimpoint sight in non-firing scenes.
Smith & Wesson M76
A cartel gunman attempts to draw a Smith & Wesson M76 submachine gun during the border crossing shootout.
Rifles
M4A1 Carbine
FBI Agents Kate Mercer (Emily Blunt), Reggie Wayne (Daniel Kaluuya) and Phoenix Police Department SWAT officers use M4A1 Carbines with EOTech 553 sights and/or Aimpoint CompM2 CCO sights and foregrips during the film's opening raid in Chandler, Arizona. During the US-Mexican border scene, DEA Agent Steve Forsing (Jeffrey Donovan) and Delta Force commandos also use M4A1 Carbines with EOTech 553 sights and foregrips. Mexican Federal Police officers, Border Patrol Officers, and cartel members carry M4A1s with detachable carrying handle rear iron sights and older A2 rounded handguards. At least two Phoenix SWAT officer wield M4A1s with black Magpul MOE furniture and ACOG scopes in the first minutes of the film and are carried as well by Delta Force commandos, most notably by the team leader (Dylan Kenin) during the night raid to the tunnels in conjunction with the standard M4A1. Its possible these may be airsoft replicas as well like the G&P M4 MOE CQBR but these rifles feature 14.5 in barrels.
Daniel Defense M4A1
Matt Graver (Josh Brolin) uses a Daniel Defense M4A1 with a foregrip, Magpul PMAG, EOTech 553 sight, and SureFire M720V RAID flashlight as his main weapon.
Colt Model 933
A Mexican Federal Police officer is seen wielding a Colt Model 933.
G&P M4 MOE CQBR
During the border shootout, Delta Force commandos use what are likely airsoft replica G&P M4 MOE CQBR rifles. Border Patrol and ICE Agents are also seen with these rifles as they are guarding a large group of captured immigrants.
M16A4
During the night raid journey to the hidden tunnels, two Delta operatives have what appears to be M16A4 type rifles fitted with bipods and EOTech XPS sights as seen through thermal vision.
Heckler & Koch G36C
One of the Delta Force commandos can be seen wielding a Heckler & Koch G36C with an EOTech sight.
AKMSU
One of the cartel gunmen at the border crossing wields an AKMSU.
AK-103
An AK-103 rifle (likely an American semi-auto clone such as the Arsenal SLR-107FR) is used by a cartel hitman disguised as a Federal police officer (or a corrupt Federal police officer doing jobs for the cartel) during the border crossing shootout. A similar rifle is also seen in Silvio's (Maximiliano Hernández) home.
AKMS (Shortened)
One of Fausto Alarcon's bodyguards uses a shortened AKMS rifle.
Remington 700 PSS
During the film's opening raid, a SWAT sniper uses a Remington 700 PSS to provide cover for Kate's team.
Machine Guns
FN M249E2 SAW
M249 SAW machine guns are mounted on Mexican Federal Police pickups.
M230 Chain Gun
The M230 Chain Gun is seen with AH-64 Apaches inside a US military base.
Shotguns
Mossberg 590 Mariner Cruiser
A member of the cartel uses a Mossberg 590 Mariner Cruiser during a shootout with the FBI.