Near the end of "Lord Baltimore (No. 104)", Raymond Reddington uses a Browning Hi-Power as his main sidearm. He later uses it in suceeding seasons.
Colt Model 1903
In a brief continuity error in "Dr. Linus Creel (No. 82)", Duncan Prince's Colt M1911A1 changes for a few seconds to a Colt Model 1903.
Colt M1911A1
Duncan Prince is seen wielding a Colt M1911A1 near the end of "Dr. Linus Creel (No. 82)". One of Gerst's men appears to use one in "The Longevity Initiative (No. 97)". A stainless steel version is used by a black ops agent employed by the Director Kotsiopulos while disguised as a FBI Agent in "Leonard Caul (No. 62)".
Colt M1991A1
A Colt M1991A1 version is seen in the hands of Yabari (Sahr Ngaujah) near the end of "T. Earl King VI (No. 94)" with Reddington using it later to settle the score with the Kings.
CZ 75B
Berlin and his men in Russia are armed with the CZ 75B in the middle of "The Decembrist (No. 12)".
CZ 75 SP-01 PHANTOM
A CZ 75 SP-01 PHANTOM appears to be the sidearm of Dembe Zuma (Hisham Tawfiq) throughout the season, first appearing in "The Scimitar (No. 22)". One of Lord Baltimore's men uses a CZ 75 SP-01 PHANTOM as his sidearm when he raids the Hyland residence in "Lord Baltimore (No. 104)".
Glock 17 (FAB Defense KPOS G1)
Glock 17s outfitted with FAB Defense KPOS G1 carbine conversion kits are used by some of the escapees who seized the CIA black site in "Luther Braxton (No. 21)".
Glock 17
The Glock 17 is used by Mossad agent Samar Navabi (Mozhan Marnò) while in the task force under the cover of a FBI agent, first seen in "Dr. Linus Creel (No. 82)". A Front cultist named Chris Perez (Blake DeLong), infected with the Apophis Strain, uses Navabi's sidearm to shoot her near the end of "The Front (No. 74)". Loyd Munroe (Elliot Villar) uses one taken from a New York State Trooper at the start of "The Longevity Initiative (No. 97)".
Glock 19
FBI agents, most notably Elizabeth "Liz" Keen (Megan Boone) and Donald Ressler (Diego Klattenhoff), are seen using Glock 19s throughout season 2. Tom Keen (Ryan Eggold) uses one in a dream at the start of "Dr. James Covington (No. 89)". A Berlin agent disguised as a Homeland Security agent use it to shoot Fitch's aide in "The Decembrist (No. 12)". One of Kenneth Jasper's guards uses it in "Quon Zhang (No. 87)", but was disarmed by Dembe. Alliance/Cabal assassins use them when they engage Tom and Liz in the middle of "Tom Connolly (No. 11)".
Glock 26
A Glock 26 is seen in the hands of Navabi in the middle of "Quon Zhang (No. 87)".
Makarov PM
A Makarov PM is used by Ruslan Denisov (Faran Tahir) as his main sidearm throughout "Ruslan Denisov (No. 67)".
Smith & Wesson M&P Shield
Raymond Reddington carries a Smith & Wesson M&P Shield as his sidearm when he confronts Maddox Beck to secure Apophis Strain vaccines in "The Front (No. 74)".
Yabari is seen showing off his Tokarev TT-33 at the start of "Lord Baltimore (No. 104)". Baz (Bazzel Baz) pulls one out when he and Dembe corner the Major near the end of "The Major (No. 75)".
X26 Taser
Most of Lord Baltimore's men are armed with X26 Tasers when they storm the Hyland residence in "Lord Baltimore (No. 104)".
Walther PPK
A Berlin turncoat named Vargas (Paul Reubens) uses a silenced Walther PPK near the end of "Dr. James Covington (No. 89)" with Reddington using it later to take care of his turncoat associate. A stainless steel version is used by Dr. Linus Creel (David Costabile) near the end of "Dr. Linus Creel (No. 82)". Tom Keen uses a silenced PPK during a mission in Dresden, Germany to take out an arms dealer in the middle of "The Major (No. 75)" and uses it without a silencer in "Tom Keen (No. 7)".
Walther P99
A Walther P99 with a stainless slide is used by Tom Keen as his main sidearm during "Tom Connolly (No. 11)".
Revolvers
Enfield No. 2
Most of Yabari's men are armed with Enfield No. 2 revolvers throughout the start of "Lord Baltimore (No. 104)". Human traffickers uses the No. 2 as their sidearm at the start of "The Mombasa Cartel (No. 114)" uses one as his main sidearm.
Smith & Wesson New Model No.3
A Smith & Wesson New Model No.3 with a pearl grip is used throughout "T. Earl King VI (No. 94)" as the sidearm used by the King family to settle differences by Russian roulette. Reddington uses it to execute the patriarch after escaping captivity.
Smith & Wesson Model 10
What appears to be a Smith & Wesson Model 10 is used by ex-CIA agent Leonard Caul (Ned Van Zandt) in "Leonard Caul (No. 62)". It's also used by Liz's mother Katarina Rostova was used by Masha Rostova/Elizabeth Keen as a child to shoot her abusive father in a flashback towards the end of the season 2 finale, "Tom Connolly (No. 11)".
Smith & Wesson Model 28
A Smith & Wesson Model 28 is used by Reddington near the end of "Leonard Caul (No. 62)" to defend himself during an assault on his safehouse. Note that he fires seven shots when said weapon only holds six in reality.
Smith & Wesson Model 29
Duncan Prince uses a Smith & Wesson Model 29 as his main weapon when he confronts Dr. Creel near the end of "Dr. Linus Creel (No. 82)".
A Smith & Wesson Model 65 is used by Dr. Julian Powell (Joshua Close) near the end of "The Longevity Initiative (No. 97)" when he chooses to commit suicide.
The bank robbers in "The Monarch Douglas Bank (No. 112)" are all armed with Heckler & Koch MP5Ks.
Heckler & Koch MP5K-PDW
Heckler & Koch MP5K-PDWs are seen with some of the black ops agents working for Director Kotsiopulos near the end of "Leonard Caul (No. 62)".
Heckler & Koch MP5A3
The Heckler & Koch MP5A3 is seen in the hands of Francis King's men in "T. Earl King VI (No. 94)." GSG-9 operators use them during a raid in Munich in the middle of "Tom Keen (No. 7)". Some of Reddington's men use them in "Leonard Caul (No. 62)" while protecting his safehouse while black ops agents working for Director Kotsiopulos use them as well.
KRISS Vector
One of Lord Baltimore's men was armed with a KRISS Vector in "Lord Baltimore (No. 104)", seen next to his corpse.
IMI Micro Uzi
Samar Navabi uses an IMI Micro Uzi to cover the advance of Agents Keen and Ressler in "The Monarch Douglas Bank (No. 112)". A Micro Uzi with a suppressor is used by an assassin working for the Scimitar in "The Scimitar (No. 22)".
Assault Rifles
AR-15
AR-15s are seen with Reddington's mercenaries and some of the black ops agents working for Director Kotsiopulos near the end of "Leonard Caul (No. 62)".
AK-47
An AK-47 is used by a human trafficker at the start of "The Mombasa Cartel (No. 114)".
AKS-47
AKS-47 assault rifles are seen with some Uzbek Army commandos during a raid in "Ruslan Denisov (No. 67)".
AKM
An AKM rifle is used by an ex-Kenyon Family member turned survivalist before Liz disarms him of it near the end of "The Kenyon Family (No. 71)". An arms dealer in Dresden, Germany is seen holding it in the middle of "The Major (No. 75)".
AKMS
An AKMS rifle is used by a human trafficker at the start of "The Mombasa Cartel (No. 114)". Supreme Republic of Uzbekistan fighters and an Uzbek Army special forces soldiers use them throughout "Ruslan Denisov (No. 67)".
AKMSU
Most of Reddington's men operating in Warsaw, Poland are armed with AKMSUs modified to carry railed foregrips near the end of "The Monarch Douglas Bank (No. 112)". A SRU fighter and an Uzbek Army commando use them in "Ruslan Denisov (No. 67)".
Colt Law Enforcement Carbine
Colt Law Enforcement Carbines are seen in the hands of police officers and military personnel throughout the season.
Colt Model 933
A Colt Model 933 is seen with a FBI HRT assaulter when Reddington's safehouse is secured by the FBI at the end of "Leonard Caul (No. 62)".
FN FS2000
FN FS2000s are uncovered by GSG-9 operatives during a raid in "Tom Keen (No. 7)".
Norinco Type 56
Norinco Type 56s are used by Yabari's men at the start of "Lord Baltimore (No. 104)".
SIG P556 SWAT / SG 550 hybrid
A SIG P556 SWAT and SIG SG 550 hybrid assault rifle is used by Dembe near the end of "Leonard Caul (No. 62)".
Battle Rifles
FN FAL
A FN FAL with a solid stock is used by human traffickers at the start of "The Mombasa Cartel (No. 114)".
Springfield M1A
A Springfield M1A is seen in the hands of a young Nora Mills in a photo in "Lord Baltimore (No. 104)".
Winchester Model 1873
What appears to be a Winchester Model 1873 is used by an ex-Kenyon Family member turned survivalist to shoot David Kenyon after he does not go through with blowing the explosives inside the van near the end of "The Kenyon Family (No. 71)".
Shotguns
Kel-Tec KSG
Some Kel-Tec KSGs are seen in "Leonard Caul (No. 62)" with some of Reddington's men, equipped with EOTech sights and vertical foregrips. Tom secures one as well.
Remington 870
A Remington 870 with a breacher muzzle and a M4-type stock is used by Gerst (David Patrick Kelly) during a kidnapping operation in "The Longevity Initiative (No. 97)".
Remington 870 Slug Gun
A Remington 870 Slug Gun with black synthetic furniture is used by one of Gerst's men when he kidnaps Tom and the Major in the middle of "The Longevity Initiative (No. 97)".
Remington 887 Nitro Mag Tactical
A Remington 887 Nitro Mag Tactical is used by Reddington when he breaks out of the CIA blacksite near the end of "Luther Braxton (No. 21)".
Machine Guns
Browning M9191A4
A Browning M1919A4 appears to be visible in Francis King's stash in "T. Earl King VI (No. 94)".
M61 Vulcan
M61 Vulcans are used by USAF F-22 fighters taking off from USAF Wright-Patterson near the end of "Luther Braxton (No. 21)".
PKM
A possible PKM is mounted on top of a Cameroonian Humvee pursuing a kidnapped Reddington at the start of "Lord Baltimore (No. 104)".
Sniper Rifles
Desert Tactical Arms Stealth Recon Scout
A Berlin agent has a Desert Tactical Arms Stealth Recon Scout at the front passenger seat of his sedan at the end of "Lord Baltimore (No. 104)". Ezra, the man shadowing Liz, uses the SRS as his main weapon, which was first seen at the end of "Dr. James Covington (No. 89)".
Nemesis Arms Vanquish
Nora Mills aka Lord Baltimore (Krysten Ritter) uses a Nemesis Arms Vanquish with a mounted riflescope and suppressor in "Lord Baltimore (No. 104)" to take out US Marshals guarding the Hyland residence.
Remington 700PSS
A Remington 700PSS is used by a CIA SAD agent operating in Tashkent near the end of "Ruslan Denisov (No. 67)".
Rocket Launchers
RPG-7
A Cameroonian child soldier uses an RPG-7 to take out a pursuing Humvee in "Lord Baltimore (No. 104)" (S2E01).
Grenades
Model 7290 flashbang grenade
A Model 7290 flashbang grenade is used by a Mossad kidon unit that apprehends Reddington in the middle of "Lord Baltimore" (No. 104). One is used at the start of "The Kenyon Family (No. 71)", which is erroneously shown as a smoke grenade.
Grenade Launchers
Defense Technologies 37mm Gas Gun
A Defense Technologies 37mm Gas Gun is used by a CIA black ops site guard when Luther Braxton attempts to conduct a siege on the CIA prison site in "Luther Braxton (No. 21)".
Others
Warsaw Small Arms arsenal
A hidden small arms arsenal at the kitchen of a doughnut shop in Warsaw is seen in "The Monarch Douglas Bank (No. 112)".
Black Market arsenal
Vargas is seen checking out a variety of small arms in "Dr. James Covington (No. 89)".
Compound Bow
Matthew Kincaid uses a compound bow to kill Lee Chung in "The Mombasa Cartel (No. 114)".