NCIS: Naval Criminal Investigative ServiceNCIS: Naval Criminal Investigative Service - Internet Movie Firearms Database - Guns in Movies, TV and Video GamesNCIS: Naval Criminal Investigative Service
NCIS is an American crime procedural series that centers around agents of the Naval Criminal Investigative Service investigating criminal cases involving military personnel in the Navy and Marine Corps. Most of the series' characters were introduced in the Season 8 episodes of JAG titled "Ice Queen" and "Meltdown". Premiering as a weekly show on CBS in September of 2003, the series' current cast includes Mark Harmon, Michael Weatherly, Cote de Pablo, Sean Murray, Pauley Perrette, and David McCallum. NCIS Los Angeles is a spinoff of NCIS and several NCIS:LA characters were introduced in the Season 6 episodes "Legend Part I" and "Legend Part II".
The following weapons were used in the television series NCIS:
The SIG-Sauer P228 is the main sidearm of nearly all the NCIS agents in the series including Special Agents Leroy Jethro Gibbs (Mark Harmon), Anthony DiNozzo (Michael Weatherly), Timothy McGee (Sean Murray), Caitlin Todd (Sasha Alexander) and Ziva David (Cote de Pablo). CGIS (Coast Guard Investigative Service) Special Agents Abigail Borin (Diane Neal) and Kyle Omagi (Eddie Shin) also are seen carrying SIG-Sauer P228's in Season 7's "Jurisdiction", although they would in reality carry a P239 DAK or a P229 DAK in some cases. FBI Special Agent Tobias Fornell (Joe Spano) is seen carrying a SIG-Sauer P228 in some episodes, notably "Identity Theft". In a flashback to an assassination operation in Paris in Season 5's "Judgment Day parts 1 & 2", Gibbs uses a suppressed SIG-Sauer P228 to kill ex-KGB assassin turned contract killer Anatoli Zukov. NCIS Special Agents Gayle Levin (Alimi Ballard) and Simon Cade (Matthew Willig) draw their P228's in Season 8's "Swan Song" (S8E23).
SIG-Sauer P229
In Season 4's "Faking It", retired NIS (Naval Investigative Service, the immediate predecessor to NCIS) Agent Mike Franks (Muse Watson) holds a two-tone SIG-Sauer P229 on arms dealer Arkady Kobach - in Franks' own words, a "scary S.O.B." that kept him awake for 15 years. An ordinary P229 was used by a US Coast Guard officer in Season 9's "Safe Harbor".
SIG-Sauer P230
CGIS Special Agent Abigail Borin (Diane Neal) carries a SIG-Sauer P230 as her off-duty weapon in Season 8's "Ships in the Night". She is seen pulling it from her purse at the episode's beginning.
SIG-Sauer P239
In Season 6's "Legend, Part I" and "Legend, Part II", NCIS Special Agent Kenzi Blye (Daniela Ruah) uses a SIG-Sauer P239 to threaten a group of bangers.
In Season 7's "Jack Knife", Ziva is seen carrying an AMT Backup pistol in an ankle holster.
Beretta 85F
In Season 2's "Forced Entry" (S2E09), Laura Rowens (Megan Ward) uses a Beretta 85F to shoot a man she thought was going to attack her. In Season 2's "Conspiracy Theory", Catherine Reynolds (Brigid Brannagh) is seen holding the Beretta on her partner in crime.
Beretta 92FS
The Beretta 92FS (used in lieu of the Beretta M9) appears as the issued sidearm of various military personnel and in the hands of various characters throughout the series. In the Season 2 premiere "See No Evil," kidnapper Kyle Grayson (William Mapother) holds one on his hostage while in a standoff with NCIS agents. In Season 3's "Kill Ari, Part 1", terrorist Ari Haswari (Rudolf Martin) holds Dr. Mallard's assistant, Gerald, hostage with one. Gibbs also keeps one in his car during the events of "Kill Ari: Part 2," as it is seen while he and Jenny are staking out Ari's safe house. Port Security Chief Matthew Lake (Daniel Roebuck) pulls a Beretta in the later Season 3 episode, "Boxed In". Lt. Colonel Hollis Mann (Susanna Thompson) of the Army CID (Criminal Investigation Division) is seen carrying a Beretta 92FS and notably uses it in Season 4's "Sharif Returns". In Season 6's "Deliverance," Ziva fires one on a Marine weapons range and claims to prefer the SIG. She also upsets the misogynistic range sergeant on duty, who doesn't expect women to know anything about handguns, by showing him his sight is off by a few millimeters. In Season 8's "Enemies Domestic", during his flashbacks to his first mission in Amsterdam, Director Vance is seen with one. It's also seen in "Defiance" where a US Marine uses it to confront a suicide bomber.
Beretta 92FS Inox
In Season 6's "Deliverance", a gun dealer is seen showing a Beretta 92FS Inox to a customer, stating it's "Homie's best friend 9mm, it's Italian, 15 plus 1 in da tube". Another one with pearl grips (possibly the same one) is used by the first mate on the Damocles in Season 7's "Good Cop, Bad Cop". Another appears in Season 2's "Heart Break", being carried by Ensign Evan Hayes (Nathan Wetherington). It is also used by the occasional adversary, sometimes equipped with a suppressor, notably in the Season 5 episode 'Designated Target'.
Beretta Cougar
In Season 3's "Light Sleeper" (S3E14), a .40 caliber Beretta 8040 Cougar F owned by Marine Sgt. Malcolm Porter (Tim Griffin) is identified as the murder weapon in the shooting of two military wives. While examining it in her laboratory, Abby embarks on a brief segue on a critics' description of the .40 S&W round as a "Short and Wimpy," when measured against the 10mm Autoload. The handgun appears to be Inox variant.
Blackhand
A prototype special operations pistol called the "Black Hand" was used in several murders by an ex-military analyst turned assassin in "The Penelope Papers". It's a prop pistol that is based on the SP-21 Barak.
In Season 4's "Sandblast", Gibbs finds a Colt Government Model handgun in the store of the CIA informant Mamoun Sharif (Enzo Cilenti). Gibbs mentions that the handgun is ".38 Super, Colt", which means it's a Colt model chambered in .38 Super.
Colt Officer's Enhanced Mark IV
What appears to be a Colt Officer's Enhanced Mark IV Series 80 is the sidearm of Baltimore P.D. Detective Anthony DiNozzo (Michael Weatherly) in Season 8's "Baltimore". The handgun appears to have a skeletal hammer and Novak sights.
Colt M1911A1
In Season 2's "Vanished" (S02E03) Marine helicopter pilot Captain Todd Newell (Rob Boltin) carries a M1911A1 while hiding out in the Virginia forest and stalking his brother's murderer.
In Season 2's "Call of Silence" (S2E07), Iwo Jima veteran Ernie Yost (Charles Durning) brings his M1911A1 to NCIS headquarters to turn himself in for possibly murdering a fellow Marine during the war.
In Season 2's "Dark Water", private investigator Monroe Cooper (Mike Starr) is caught faking the murder of an accident victim, using a M1911A1 from the home of the primary "suspect."
In Season 4's "Escaped", (S4E02), retired Navy sailor Mickey Stokes (Hal Holbrook) has his old M1911A1 stolen from him and then later pointed at him by Petty Officer Derrick Paulson (Brandon Barash) in Season 4's "Escaped" (S4E02).
In a continuity error, a suppressed CZ 83 pistol is briefly seen instead of Makarov when Namir Eschel (Eyall Podell) has a pillow put over his head in Season 4's premiere "Shalom".
Flintlock Pistol
Several Flintlock Pistols as well as other pirate treasure are found in a storage locker in Season 7's "Jurisdiction".
Glock 17
The Glock 17 is another frequently-used handgun in the series. In Season 1's "Enigma", FBI Special Agent Tobias Fornell (Joe Spano) is seen drawing a Glock. In Season 2's "Terminal Leave," Navy Lt. Commander Michaela "Micki" Shields (Mary Page Keller) keeps a Glock in her home. In Season 4's "Faking It", Glocks are carried by DC-Metro Police. DC-Metro Detective Andrea Sparr (Gretchen Egolf) draws a Glock 17 in Season 5's "Stakeout". In Season 5's "Lost and Found" (S5E09), Det. Collins (J.R. Bourne) aims a Glock while searching a state park for a fugitive. Glock 17s with silver slides (like the full-auto-converted one below) are used by two gang members in Season 6's "Deliverance". Mossad Officer Michael Rivikin (Merik Tadros) pulls a Glock 17 on Callen during the the Season 6's "Legend, Part 2." Ziva is seen using a Glock in Season 7's "Good Cop, Bad Cop". Ex-Army Ranger-turned-mercenary Jason Paul Dean (Dylan Bruno) pulls his Glock 17 on Gibbs after his arrival in Mexico in Season 7's "Patriot Down" (S7E23). Marine Sergeant Heather Dempsey (Abby Brammell) uses a Glock to shoot an intruder in Season 8's "Short Fuse". Mossad officers Malachi Ben-Gidon (T.J. Ramini), Amit Hadar (Arnold Vosloo) and Liat Tuvia (Sarai Givaty) carry Glock 17's as their sidearms when they accompany Eli David to Washington D.C. NCIS Director Vance (Rocky Carroll) uses a Glock 17 taken from Hadar in Season 8's "Enemies Domestic".
Glock 17 (Full Auto Conversion)
In Season 6's "Legend, Part 2", a two-toned Glock 17 converted to full auto with a 33 round magazine is used by the lead terrorist Haziq Khaleel (Nick Tarabay) in an attempt at repelling the OSP raid team.
Glock 17L
In Season 2's "Witness" (S2E14), a Glock 17L was found in the convertible sofa bed used by Petty officer Keith Dylan/Robert J. Thorn. It was misidentified as a SIG-Sauer and can be clearly seen in multiple other scenes as a Glock, most clearly when being test-fired into a bullet capture chamber by Abby Sciuto (Pauley Perrette).
Glock 19
The Glock 19 is used by numerous characters in the series. NCIS Special Agent Michelle Lee (Liza Lapira) while undercover is seen holding a Glock in Season 4's "Once A Hero". Mike Franks uses one in the rescue of his daughter in law in Season 4's "Iceman". A kidnapper holds a Glock 19 in Season 5's "Requiem".
Glock 21
In Season 6's "Dead Reckoning" (S6E20), CIA Agent Trent Kort (David Dayan Fisher) uses a Glock 21 during a shootout at the beginning of the episode. After they are dead he picks up the dead guy's Smith and Wesson Tactical 9x19mm and wipes his Glock 21 for prints and puts it the hands of the dead terrorist.
Glock 26
A terrorist attempts to dual-wield two Glock 26 pistols in Season 8's "Enemies Foreign" after using a Spike missle launcher.
NCIS Special Agent E.J. Barrett (Sarah Jane Morris) can be seen carrying a subcompact Glock 26 as her sidearm in Season 8's "Swan Song".
Heckler & Koch P2000 SK
In Season 5's "Judgment Day, Part 1", Mike Franks gives Jenny Shepard (Lauren Holly) a Heckler & Koch P2000 SK to use. Franks says the gun is a clean, with no registration number and is the one Jenny uses when engaging the shooters in the diner.
In Season 5's "About Face" (S5E17), Tesla Suskavcevic (James Logan) pulls a Jericho 941 on Jimmy Palmer from his car. Oddly, the gun that appears in his hand during Jimmy's flashback to their first encounter is a full-sized Desert Eagle.
In Season 4's "Faking It", Russian arms dealer Arkady Kobach (V.J. Foster) lets his Jericho 941 fall when he sees that Mike Franks (Muse Watson) has the drop on him.
In Season 7's "Good Cop, Bad Cop," the captain of the merchant ship Damocles uses one, almost shooting his first mate and holding it on Ziva before being shot from behind.
Kahr P9
In Season 3's "Untouchable", a Kahr P9 is found next to a dead female Naval officer.
Magnum Research Desert Eagle
In Season 5's "About Face" (S5E17), criminal Tesla Suskavcevic (James Logan) opens fire on Jimmy Palmer (Brian Dietzen) with a Desert Eagle sporting a stainless steel finish. Oddly, when Tesla is confronted at the end of the episode, his gun is a Jericho 941, or "Baby Eagle." Aside from the possibility that he owns two pistols, it is also possible that the Desert Eagle that appears in Jimmy's memory is a trick of his imagination, making the gun he saw appear much bigger than it really was. This is consistent with the theme of the episode, emphasizing how shaken Jimmy is after being shot at. In Season 6's "Judgment Day", a gang member uses one but is gunned down by Mike Franks.
Magnum Research Micro Eagle
A Magnum Research Micro Eagle is used by Paloma Reynosa (Jacqueline Obradors) in Season 8's premiere "The Spider and the Fly".
Makarov PM
In his first appearance, Ari Haswari (Rudolf Martin) uses a Makarov PM equipped with a suppressor to hold Kate (Sasha Alexander), Gerald, and Ducky (David McCallum) hostage in Season 1's "Bête Noire" (S01E16). A suppressed Makarov is used by Faatin Amal (Saba Homayoon) in Season 4's premiere "Shalom".
Para Ordnance Companion C7.45
In Season 2's "Chained", Tony uses a Para Ordnance C7.45 (as evidenced by the factory Para grips and the LDA hammer and trigger).
Ruger Mk I
In Season 6's "South by Southwest", a Ruger Mk I is used to assassinate an NCIS agent.
Smith & Wesson SW1911PD
Mike Franks (Muse Watson) carries a Smith & Wesson SW1911PD with the full 5" barrel as his sidearm. It can be seen in the Season 5 episodes "Judgment Day, Part 1" and "Judgment Day, Part 2". What differentiates the PD model are the front serrations on the slide that's similar to those in such handguns as the Kimber. The pistol also has a desert tan Crimson Trace grip-mounted laser sight. The SW1911PD is also used in the Season 6 episode "Deliverance", the season 7 finale "Rule Fifty-One" and the Season 8 premiere "The Spider and the Fly". Franks also pulls it in Season 8's "Swan Song" before it was taken by the Port-to-Port Killer Jonas Cobb (Kerr Smith). Cobb is seen brandishing it in Season 8's finale "Pyramid".
A terrorist, disguised as a trooper, uses a S&W 5906 to gun down the naval officers in Season 2's "Twilight". In Season 3's "Jeopardy", James Dempsey (Connor Trinneer) holds NCIS Director Sheperd (Lauren Holly) hostage with a Smith & Wesson 5906. In Season 6's "Dead Reckoning" (S6E20), CIA Agent Trent Kort (David Dayan Fisher) takes a Smith & Wesson 5906 from a terrorist that he shot after planting his Glock on the dead guy. A police officer pulls a S&W in Season 8's "Kill Screen".
Taurus PT92C
The North Korean sleeper agent Yoon Dawson (Esther Chae) holds a suppressed Taurus PT92C in Season 3's "Light Sleeper".
Taurus PT945
A Taurus PT945 is seen in the hands of an intruder that is shot by Marine Sergeant Heather Dempsey (Abby Brammell) in Season 8's "Short Fuse". The weapon seems to be the same used on the set of U.S. Marshals because the serial number is filed off. Also the Taurus PT945 first series is not easily available with the silver hammer, in fact was produced almost exclusively with black hammer.
Tokarev TT-33
A Tokarev TT-33 pistol is seen in photos in "A Man Walks into a Bar" as a murder weapon.
Tower Lancers Pistol
In Season 7's "Reunion", a 19th Century Tower Lancers Pistol is used by a suspect to shoot a man that the NCIS team was looking for.
Walther PPK/S
Col. Will Ryan (Terry O'Quinn), Gibbs former CO, owns and uses an Interarms imported Walther PPK/S in Season 1's "Enigma" (S01E15).
Walther P99
A kidnapper is seen about to use a suppressed Walther P99 on a kidnapped Marine right before Gibbs and the team breach the room in Season 3's "Honor Code". In Season 8's "Baltimore", a Walther P99 is specifically identified as the weapon of a suspect.
In Season 6's "Deliverance", a gun dealer is seen showing a Colt Python to a customer.
Colt 1860 Army
In Season 3's "Silver War", a coffin is unearthed containing several weapons from the Civil War, including a Colt 1860 Army revolver.
LeMat 1861
In Season 3's "Silver War", a coffin is unearthed containing several weapons from the Civil War, including a LeMat 1861 revolver.
Ruger GP100
In Season 2's "Pop Life" (S2E16), club owner Ian Alfred "Bulldog" Hitch (Steven Brand) is seen using a Ruger GP100 to threaten one of his dancers, Samantha "Jade" King (Mya Harrison). In Season 4's "Cover Story", a blued Ruger is used to threaten Abby.
Smith & Wesson Model 10
In Season 6's "Capitol Offense", McGee falls into a small pond where he finds a Smith & Wesson Model 10 that may have been used in a Navy lieutenant's murder. DiNozzo calls it a "Smith & Wesson. 38 Kit".
Smith & Wesson Model 19
In the Season 3 episode "Deception," a security guard holds a Smith & Wesson Model 19 on Ziva and Tony, but Ziva kicks the weapon out of his hands. What appears to be a S&W 19 is used by a murder victim's brother in Season 8's "False Witness" to intimidate her murderer.
Smith & Wesson Model 37
Gibbs (Mark Harmon) carries a Model 37 with a black finish in an ankle holster as his backup weapon. In the Season 3 episode "Mind Games", he uses it to threaten sadistic serial killer Kyle Boone (Christopher Shyer). In the later Season 3 episode "Probie," he gives it to McGee, whose weapon has been temporarily confiscated, to back Gibbs up as they go to question a suspect. In the Season 9 episode "Restless", it was seen beside ex-con Curtis when Gibbs and the NCIS team (except Ziva) were approaching him on the roof of a taco restaurant building.
A nickel Smith & Wesson Model 37 Airweight revolver is used to kill a bully on a Navy base in the Season 6 episode "Hide & Seek". Checking out its violent history causes Abby Sciuto (Pauley Perrette) to label it an "evil gun" and describe it as possessed (as it was used in convenience store hold-ups and other crimes each time it changed hands).
Smith & Wesson Model 637 Airweight
A Smith & Wesson Model 637 Airweight revolver is found on the floorboard of a car by DC police in Season 4's "Faking It" (S4E04). A 637 is also used by Ziva in Season 5's "Recoil".
Smith & Wesson Model 60
In Season 2's "Terminal Leave", DiNozzo is seen carrying a Smith & Wesson Model 60 as his backup weapon when jogging with a Navy commander.
Smith & Wesson Model 66
A Smith & Wesson Model 66 is said to have been used by Amanda Reed (Jamie Luner) in Season 1's "Dead Man Talking" (S1E19). Gibbs referred to it as being "small, and easy to conceal." However, this is an error since the image of the gun that flashes on the lab screen (a stock product photo from the S&W catalog) is a Smith & Wesson Model 60, not the Model 66. The Model 60 is much more concealable than the larger framed Model 66. The 66 is also pulled by distraught housewife Greta Boyen (Rebecca Staab) in Season 2's "Terminal Leave". The 66 also is used by "kidnappers" in Season 8's "Defiance" (S8E15).
Smith & Wesson Model 340PD
Ziva carries a Smith & Wesson Model 340PD as her backup gun, which she carries in an ankle holster and she once dual wielded along with her SIG in Season 6's "Dead Reckoning". She is seen briefly handling it before going undercover in Season 8's "Dead Air" and dual-wields it again with her SIG in Season 9's "Newborn King" (S9E11).
Smith & Wesson Model 627
Natasha Lenkov (Kathleen Gati) holds a Smith & Wesson Model 627 on Gibbs and Franks in Season 5's "Judgment Day, Part II".
Webley Mk IV
A Webley Mk IV revolver was used by CIA station chief Loretta Tennison in Season 8's "Royals & Loyals".
Submachine Guns
Beretta M12
Alejandro Rivera uses a Beretta M12 to shoot up the safe house in Season 8's "The Spider and the Fly".
Mossad Officer Malachi Ben-Gidon (T.J. Ramini) uses an FN P90 during the firefight on the Damocles in Season 7's "Good Cop, Bad Cop". Two P90s are also visible in the "sanctuary" in Season 7's "Power Down".
Heckler & Koch MP5K
The three men that accompany Jason Dean to the airport in the Season 7 finale "Rule Fifty-One" use Heckler & Koch MP5Ks during the ensuing shootout.
Heckler & Koch MP5K-PDW
In the series premiere "Yankee White" (S1E01), an Al Qaeda sleeper takes a Heckler & Koch MP5K-PDW from the armory of Air Force One. Two Heckler & Koch MP5K-PDWs can be seen in the "sanctuary" in Season 7's "Power Down".
Heckler & Koch MP5A2
SRT members are seen carrying Heckler & Koch MP5A2's during the hostage situation at the school in Season 3's "Bait". Russian special forces posing as pirates in Season 5's "Chimera" also carry Heckler & Koch MP5A2s with dedicated forends and Navy trigger groups.
Heckler & Koch MP5A3
In Season 1's "Enigma", Col. Will Ryan (Terry O'Quinn) takes an Heckler & Koch MP5A3 from one of his captors. In Season 1's "Split Decision", Gibbs goes undercover as an arms dealer, and uses a Heckler & Koch MP5A3. Several are also seen in the "sanctuary" in Season 7's "Power Down".
Heckler & Koch MP5SD2
Seen in Season 9's "Desperate Man" when Abby shows Gibbs a photo of the SD2.
Heckler & Koch MP7
In the Season 7 episode "Power Down", two Heckler & Koch MP7s can be seen hanging on a wall of the "sanctuary".
IMI Uzi
Ziva uses a full size Uzi during the firefight aboard the Damocles in Season 7's "Good Cop, Bad Cop" (S7E04).
IMI Micro Uzi
In a flashback, Ziva uses a Micro Uzi to a Mossad Kidon assassination in Paris in Season 4's "Shalom" (SE01).
Intratec TEC-9
In Season 6's "Deliverance", a gun dealer shows an Intratec TEC-9 to a potential client, saying "TEC-9, full auto, empty a clip in 4 seconds" and encourages him to fire it, the burst hitting the roof of the abandoned warehouse and causing the body of an already-slain Marine to fall through the skylight. It was also seen in Season 3's "Iced".
Skorpion SA Vz.61
A terrorist in Season 6's "Dead Reckoning" uses a Skorpion SA Vz 61 to shoot at Trent Kort before being killed by him. Kort then uses the Skorpion to shoot another terrorist. While usually chambered in .32 ACP, there is evidence that Vz61 clone pistols were chambered in .380 in the 1980's.
Rifles
AKM
The AKM is a frequent weapon used by terrorists and suspects in the series.
AKMS
In the Season 2 finale "Twilight", several terrorists can be seen firing AKMS rifles at Gibbs and the team to no avail. The weapon is also used by various other characters in the series.
Arisaka Type 99 Rifle
Imperial Japanese soldiers are seen with the Type 99 Arisaka Rifle as Ernie Yost (Charles Durning) remembers his time on Iwo Jima in Season 2's "Call of Silence" (S2E07).
Enfield Pattern 1853
The Enfield Pattern 1853 rifle is carried by Union re-enactors in Season 3's "Silver War".
Heckler & Koch G36C
Two Heckler & Koch G36Cs can be seen in the "sanctuary" in Season 7's "Power Down". A G36C with a mounted suppressor on the barrel is seen in Season 9's "Enemy on the Hill" (S9E04) when Gibbs and Tony uncover the assassin's hidden arms stash in his garage.
Henry 1860
In Season 3's "Silver War", a Henry 1860 is seen used by a Civil War reenactor.
Henry Rifle
What appears to be a Winchester rifle converted to resemble a Henry 1860 rifle is carried by Sheriff Boyd (Lance Henriksen) and then used by Gibbs to shoot down a helicopter in Season 6's "South by Southwest" (S6E17). The rifle, which is referred to as a "Henry" by Boyd, is seen fitted with a Vernier sight and has a longer octagonal barrel of a Henry, but is side loading like a Winchester.
Colt M4A1 Carbine
The M4A1 carbine can be seen used by various US Military personnel and gunmen throughout the series. In Season 5's "In The Zone" (S5E15), US Marines as well as Tony are seen carrying M4A1 during an investigation in Iraq. Two are visible on a rack in the "sanctuary" in Season 7's "Power Down". In Season 9's "Engaged, Part II" (S9E09), US Marines as well as Gibbs and Ziva are armed with M4A1's during a raid in Afghanistan.
Colt Model 933
In Season 6's "Cloak", US Navy guards are armed with the Colt Model 933 rifle fitted with a weaponlight. US Coast Guard officers carry Colt Model 933 rifles in Season 9's "Safe Harbor" while checking out a deserted ship.
M1 Garand
The M1 Garand rifle is seen held by members of a honor guard detail in several episodes. The ceremonial soldiers who guard the Tomb of the Unknown Soldier are seen holding Garands in Season 9's "Engaged, Part I" (S9E08).
M16A2 Rifle
The M16A2 rifle is notably carried by US Marines in several episodes as well as other characters throughout the series.
Remington 7400
A Remington 7400 is used by a suspect in Season 8's "Dead Air" to murder a Navy commander and two radio station employees.
In the Season 3 episode "Ravenous", a scoped Ruger Mini-14 is carried by Park Ranger James Landis (Todd Allen). Gibbs also used the Mini-14 to shoot Park Ranger James Landis in the butt.
SIG SG 551
Reynosa Cartel soldiers use SIG SG 551 assault rifles to shoot up the country store owned by Jackson Gibbs (Ralph Waite) in Season 8's "The Spider and the Fly". Dual SIG SG 551 rifles are used to act as a machine gun post before Liat and Gibbs shoot out its control mechanism.
SIG SG 552
The SIG SG 552 is used by Sam, Kensi and other NCIS agents in Season 6's "Legend Pt. 2" (6x23) when they raid a garage that is the headquarters of a suspected terrorist cell. Drug cartel gunmen are armed with this as well.
A Winchester Model 1873 rifle is owned by Jackson Gibbs (Ralph Waite), who keeps it loaded on the wall. In Season 7's "Faith", Jackson mentions that he had to use his Winchester to kill someone trying to rob his store. He also holds it on Paloma Reynosa when she confronts him in his store in Season 8's "The Spider and the Fly".
Winchester Model 1892
Artist Dina Risi (Mira Furlan) aims what appears to be a Winchester Model 1892 rifle at Gibbs and DiNozzo when they come looking for her in Season 6's "South by Southwest".
Sniper Rifles
Accuracy International L96A1
The Accuracy International L96A1 is one of the sniper rifles Abby test-fires in her lab in "Kill Ari, Part I". Also found in "Enemy on the Hill" in an assassin's hidden arms stash.
Blaser 93 Sniper Rifle
In Season 1's "One Shot, One Kill", wannabe sniper Kyle Hendricks (Noah Segan) can be seen armed with a Blaser 93 sniper rifle, equipped with a bipod and custom muzzle brake. It is also one of the sniper rifles seen in Abby's lab in "Kill Ari, Part I".
Bravo 51
The Bravo 51 is featured prominently in the first 2 episodes of Season 3. Gibbs says the rifle is referred as a 'Kate', it was first used by Ari Haswari (Rudolf Martin) in the Season 2 finale "Twilight". In Season 3's premiere episodes, "Kill Ari, Parts I and II", Ari is seen handling one again. In Part I, it's also one of the weapons Abby Sciuto (Pauley Perrette) test-fires in her lab as well as handled by Gibbs.
Heckler & Koch SL8
Ziva can be seen using a suppressed SL8 in the season 7 episode "Rule Fifty-One". She uses it to provide sniper cover when DiNozzo and McGee try to arrest Jason Paul Dean (Dylan Bruno). She later uses the weapon unsupressed and loaded with blanks to flush out a kidnapper in Season 8's "Worst Nightmare".
M40A1 Sniper Rifle
An M40A1 sniper rifle appears in Season 3's "Kill Ari Part I" and "Kill Ari Part II" as one of the weapons tested by Abby to see if it was used in a murder. The M40A1 was the rifle used by Gibbs in his Marine days and he now keeps it in a case in his basement. Ari is seen holding the rifle in "Kill Ari Part II". He also uses it during the rescue mission in Season 7's premiere "Truth or Consequences", killing 2 terrorists at long range. It is presumed that a different M40A1 then that currently in Gibbs' basement was used by him to avenge the murder of his wife and daughter. He used said rifle to shoot their killer from long range (in excess of 700 yards), through the windshield of a moving pick up.
In Season 3's "Bait", an SRT sniper is seen with the Remington 700PSS rifle. Ziva uses one while covering Ducky in Season 4's "Blowback".
Tango 51
A Tango 51 is an Tac-Ops accurized and blue-printed Remington M700 action, designed for high accuracy shooting. It is one of the sniper rifles Abby Sciuto (Pauley Perrette) test-fires in her lab in "Kill Ari, Part I".
Some of Drantyev's men are seen carrying Benelli M4 Super 90 shotguns in Season 5's "Judgment Day, Part I".
12 Gauge Double Barreled Shotgun
A 12 Gauge Double Barreled Shotgun is a murder weapon in Season 5's "Family". The team enters a garage where the "CyberVid Killer" is forced to hold a double-barreled shotgun in Season 6's "Murder 2.0". Gibbs swings one shut and hands it to Franks in Season 8's "The Spider and the Fly".
A Mossberg 590 Compact Cruiser is grabbed by a kidnapper in Season 3's "Honor Code".
Remington 870
Several different models of the Remington 870 are used in numerous episodes.
Remington 870 (Police)
In Season 2's finale "Twilight" (S2E26), Gibbs (Mark Harmon) uses a police Remington 870 to flush out the terrorists in the warehouse. Kate (Sasha Alexander) uses it during the shootout before running out of ammo and tossing it to take a bullet for Gibbs. In Season 3's "Ravenous", a Remington 870 Police Magnum Riot shotgun is used by Gibbs as the team hunts a fugitive in the woods.
Kate is seen using a Remington 870 Police version with a dedicated forend weapon light to wound a suspect that took her SIG in Season 1's "UnSEALed".
Remington 870 Police "Entry Gun"
In Season 4's "Sandblast", Lt. Col. Hollis Mann is seen using a Remington 870 Police Entry Gun fitted with a saddle shell holder and forend weapon light when raiding a suspected terrorist hideout.
Remington 870 Express Sureshot
One of Viggo's men holds Express model of the Remington 870 the in Season 5's "Judgment Day, Part I".
Remington 870 Express
A turkey hunter is seen with a camouflage-painted Remington 870 Express shotgun in Season 8's "False Witness".
Savage 512 O/U Gold Wing shotgun
A Savage 512 O/U Gold Wing shotgun is seen used by former Ensign Randy Wiles in Season 1's "The Curse".
Winchester Model 1200 Ranger
A turkey hunter is seen with a Winchester Model 1200 Ranger shotgun in Season 8's "False Witness".
Machine Guns
M60E3 Machine Gun
In Season 1's "Split Decision", here Gibbs is undercover as an arms dealer, several short-barreled M60E3 machine guns can be seen; Gibbs bringing them to make a sale, however the ones he brought to 'sell' didn't have firing pins.
M240 Machine Gun
What appears to be a rigged M240 Machine Gun is discovered by McGee and Malachi during a routine security check to locate potential security threats against Eli David.
M249 SAW Paratrooper
A Marine is briefly seen using an M249 SAW in Season 9's "Engaged Part II".
Browning M2
A Browning M2 HB is seen mounted on top of a Marine humvee Season 5's "In The Zone". A remote-operated Browning is seen mounted atop a Marine Cheetah in Season 9's "Engaged, Part II".
Heavy Weapons
FIM-92A Stinger
An FIM-92A Stinger is seen in the weapons cache Col. Will Ryan (Terry O'Quinn) takes Gibbs to see in Season 1's "Enigma".
M72A2 LAW
A crate of M72A2 LAW's in seen in Season 1's "Split Decision".
M136 AT4
In Season 1's "Split Decision", an M136 AT4 is seen being put up for purchase on the internet.
M141 SMAW-D
In Season 1's "Split Decision", an M141 SMAW-D is seen being put up for purchase on the internet.
A terrorist is seen using a rocket launcher that appears to be mocked up from an M3 Carl Gustav Recoilless Rifle in Season 8's "Enemies Foreign" in an attempt to kill Eli David (Michael Nouri). It resembles the mock-up launcher used in the series NCIS: Los Angeles and Chuck.
Other
Advanced Taser M26
Abby (Pauley Perrette) is seen using an Advanced Taser M26 on her stalker in the Season 3 episode "Bloodbath". A security guard also shoots McGee with one in Season 6's "Silent Night".
Air Rifle
A kid uses an air rifle to shoot a hole in an inflatable raft in Season 5's "Judgment Day, Part 1".
Paintball Gun
A paintball gun is seen by ROTC students.
ASP Red Gun (SIG-Sauer P226R)
Plastic replicas of SIG-Sauer P226's are used by Gibbs, Tony and Mossad officers Malachi Ben-Gidon (T.J. Ramini) and Liat Tuvia (Sarai Givaty) during a training exercise in Season 8's "Enemies Foreign". The "guns" have laser aiming modules attached to their rails that appear to be activated when Gibbs pulls the trigger. Interestingly ASP replicas are solid pieces of plastic, the triggers don't move.