For the fastest way to find your gun press Ctrl + F and type its name.
* Weapon requires Credits to unlock
** Unlocking from the catalog does not require Credits, getting there in the tree though does.

Click on the map to enlarge it. Then click on the link on top of it to see it in original size.

Credits for this screenshot go to gundisassembly.wikia.com as it is not done by me.

AK-47
Unlocked by default

AK-74N (24,000 Exp | 36,000 Exp)

• MP5 > Beretta 92 > SIG SG 550 S > UZI > MP40 > Buck Mark > AK-74N

AKS-74U** (20,000 Exp | 36,000 Exp)

• MP5 > Tec-9 > SIG SG552 > Thompson > Harpers Ferry > Welrod > M1919 A4 > Chiappa Rhino* > Calico M100 > AKS-74U
  
• MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > VZ 61 > Ruger 22 > Flak* > MG 34 > AKS-74U

AMT Backup (12,000 Exp | 18,000 Exp)

• MP5 > Beretta 92 > SIG SG 550 S > Borchardt > AMT Backup

Anti-Tank Boys (16,000 Exp | 30,000 Exp)

• MP5 > Tec-9 > SIG SG552 > Luger P08 > Ruger LCP > AT Boys

ArmaLite AR-18 (48,000 Exp + 2 Credits)

AS VAL* (36.000 Exp + 5 Credits)

• MP5 > Beretta 92 > SIG SG 550 S > UZI > MP40 > Buck Mark > AK-47N > AS VAL*

Barrett M107 (20,000 Exp | 30,000 Exp)

• MP5 > Beretta 92 > SIG SG 550 S > Borchardt > AMT Backup > M107

Benelli M4 Super 90 (20,000 Exp | 30,000 Exp)

• MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > Ruger MK II > M60 > M200 > M4 Super 90

Beretta 92 FS (5,000 Exp | 7,500 Exp)

• MP5 > Beretta 92

Beretta CX4 Storm (20,000 Exp | 30,000 Exp)

• MP5 > Beretta 92 > SIG SG550 S > PPSH > Derringer > Ruger MK II > Remington > Steyr Scout > CX4 Storm

Borchardt C-93 (8,000 Exp | 12,000 Exp)

• MP5 > Beretta 92 > SIG SG550 S > Borchardt

Browning A5 (20,000 | 36,000 Exp)

• MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army > PM > Walther P38 > TAR-21 > Webley > Browning A5
  
• MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK G36E > Ruger LCR > Mauser 1914 > S&W Schofield > TAR-21 > Webley > Browning A5

Browning Automatic Rifle (16,000 Exp | 30,000 Exp)

• MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK G36E > Ruger LCR > Walther PP > B.A.R.

Browning Buck Mark (20,000 Exp | 24,000 Exp)

• MP5 > Beretta 92 > SIG SG 550 S > UZI > MP40 > Buck Mark

Browning Hi-Power (12,000 Exp | 18,000 Exp)

• MP5 > Tec-9 > SIG SG552 > Thompson > Browning HP

Browning M1919 (20,000 Exp | 30,000 Exp)

• MP5 > Tec-9 > SIG SG552 > Thompson > Harpers Ferry > Welrod > M1919 A4

Browning M2 .50* (36,000 Exp + 10 credits)

• MP5 > Beretta 92 > SIG SG550 S > PPSh-41 > Derringer > Ruger MK II > M60* > M200 > Model 21 > Browning M2
  
• MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > Ruger MK II > Remington > Steyr Scout > CX4 Storm > HK USP > Browning M2

Brugger & Thomet MP9* (20,000 Exp + 10 credits)

• MP5 > Tec-9 > SIG SG552 > Thompson > Browning HP > SIG P228 > B+T MP5

Calico M100** (24,000 Exp | 36,000 Exp)

• MP5 > Tec-9 > SIG SG552 > Thompson > Harpers Ferry > Welrod > M1919 A4 > Chiappa Rhino* > Calico M100

CheyTac M200 (20,000 Exp | 24,000 Exp)

• MP5 > Beretta 92 > SIG SG 550 S > PPSH > Colt Hammer > Mauser C96 > Glock 19 > M200
  
• MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > Ruger MK II > M60* > M200

Chiappa Rhino 200 DS* (16,000 Exp + 5 credits | 24,000 Exp + 5 credits)

• MP5 > Tec-9 > SIG SG552 > Thompson > Harpers Ferry > Welrod > M1919 A4 > Chiappa Rhino*

Colt 1911
Unlocked during tutorial

Colt Pocket Hammer (10,000 Exp | 15,000 Exp)

• MP5 > Beretta 92 > SIG SG 550 S > PPSH > Colt Hammer

Colt Python (16,000 Exp | 24,000)

• MP5 > Tec-9 > SIG SG552 > Thompson > Harpers Ferry > Colt Python

Colt Single Action Army (10,000 Exp | 18,000 Exp)

• MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army

Compact Off-Duty Police (16,000 Exp | 18,000 Exp)

• MP5 > Beretta 92 > SIG SG 550 S > UZI > MP40 > Buck Mark > AK-47N > HK UMP > COP

Colt Walker (16,000 Exp | 18,000 Exp)

• MP5 > Beretta 92 > SIG SG 550 S > UZI > MP40 > Buck Mark > AK-47N > Colt Walker
  
• MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK G36E > Ruger LCR > Walther PP > B.A.R. > Colt Walker

CZ-75 (5,000 Exp | 7,500 Exp)

• MP5 > Tec-9 > CZ-75

Degtyaryov Machinegun
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > MAC-10 > S&W Sigma > DP 27
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > New Vanquero > TT > DP 27

Desert Eagle .44
MP5 > Beretta 92 > SIG SG 550 S > UZI > MP40 > Desert Eagle

Dragunov Sniper Rifle
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > New Vanquero > TT > SVD

FAMAS F1
MP5 > Tec-9 > SIG SG552 > Thompson > FAMAS F1

Flak 88
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > VZ 61 > Ruger 22 > Flak

FN FAL
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > New Vanquero > TT > SVD > FN FAL

FN P90
MP5 > Tec-9 > SIG SG552 > Thompson > Harpers Ferry > FN P90

Glock 19
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Colt Hammer > Mauser C96 > Glock 19

GSh-18
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > VZ 61 > GSh-18

Harpers Ferry
MP5 > Tec-9 > SIG SG552 > Thompson > Harpers Ferry

HK G36E
MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK G36E

HK SL9SD
MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK SL9SD
MP5 > Tec-9 > CZ-75 > Sten > Jericho > SKS M59/66 > HK SL9SD
MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army > PM > HK SL9SD

HK UMP 45
MP5 > Beretta 92 > SIG SG 550 S > UZI > MP40 > Buck Mark > AK-47N > HK UMP

HK USP
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > Ruger MK II > Remington > Steyr Scout > CX4 Storm > HK USP

Ingram MAC-10
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > MAC-10

Intratec Tec-9
MP5 > Tec-9

Jericho 941

• MP5 > Tec-9 > CZ-75 > Sten > Jericho

Kel Tec PLR 16

• MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK SL9SD > PLR 16
  
• MP5 > Tec-9 > CZ-75 > Sten > Jericho > SKS M59/66 > HK SL9SD > PLR 16
  
• MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army > PM > HK SL9SD > PLR 16

Lee Enfield No.1 Mk III
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > VZ 61 > SMLE Mk III
MP5 > Tec-9 > SIG SG552 > Thompson > Harpers Ferry > FN P90 > SMLE Mk III

Lewis Machine Gun
MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK SL9SD > Lewis Gun
MP5 > Tec-9 > CZ-75 > Sten > Jericho > SKS M59/66 > HK SL9SD > Lewis Gun
MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army > PM > HK SL9SD > Lewis Gun

Liberator
MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army > PM > Walther P38 > Mosin-Nagant > Liberator

LR 300 ML
MP5 > Tec-9 > SIG SG552 > Luger P08 > LR 300 ML

Luger P08
MP5 > Tec-9 > SIG SG552 > Luger P08

M1 Garand
MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK SL9SD > PLR 16 > M1 Garand
MP5 > Tec-9 > CZ-75 > Sten > Jericho > SKS M59/66 > HK SL9SD > PLR 16 > M1 Garand
MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army > PM > HK SL9SD > PLR 16 > M1 Garand

M134D Minigun
MP5 > Beretta 92 > SIG SG 550 S > UZI > MP40 > Buck Mark > AK-47N > HK UMP > COP > M134D
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > MAC-10 > S&W Sigma > DP 27 > M4 > ZIS > M134D
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > New Vanquero > TT > DP 27 > M4 > ZIS > M134D

M14
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > New Vanquero > TT > SVD > FN FAL > M14

M16 A1
MP5 > Tec-9 > SIG SG552 > Thompson > Browning HP > SIG P228 > M16 A1

M32 MGL
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > S&W M53

M4 Carbine
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > MAC-10 > S&W Sigma > DP 27 > M4
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > New Vanquero > TT > DP 27 > M4

M60
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > Ruger MK II > M60

Makarov Pistol
MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army > PM
MP5 > Tec-9 > CZ-75 > Sten > Jericho > SKS M59/66 > HK SL9SD > PM
MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK SL9SD > PM

Marlin 336 Deluxe
MP5 > Beretta 92 > SIG SG 550 S > UZI > MP40 > Desert Eagle > Marlin 336

Mauser 1914
MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK G36E > Ruger LCR > Mauser 1914
MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army > PM > Walther P38 > TAR-21 > S&W Schofield > Mauser 1914

Mauser 98K
MP5 > Beretta 92 > SIG SG 550 S > UZI > MP40 > Desert Eagle > Mauser 98K

Mauser C96
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Colt Hammer > Mauser C96

Maxim Gun
MP5 > Beretta 92 > SIG SG 550 S > UZI > MP40 > Desert Eagle > Marlin 336 > SVD > Maxim Gun
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > New Vanquero > TT > SVD > Maxim Gun

MG 34
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > VZ 61 > Ruger 22 > Flak > MG 34

Model 21
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > Ruger MK II > M60 > M200 > Model 21

Mosin-Nagant
MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army > PM > Walther P38 > Mosin-Nagant

Mossberg 500 SPX
MP5 > Tec-9 > SIG SG552 > Thompson > Welrod > Mossberg 500

MP40
MP5 > Beretta 92 > SIG SG 550 S > UZI > MP40

MP5
MP5

Nagant M1895
MP5 > Tec-9 > SIG SG552 > Thompson > Harpers Ferry > Welrod > M1919 A4 > Chiappa Rhino > Nagant M1895

PPSH-41
MP5 > Beretta 92 > SIG SG 550 S > PPSH

Remington 870
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > Ruger MK II > Remington 870

Remington Derringer
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer

RPG-7
MP5 > Tec-9 > SIG SG552 > Thompson > Harpers Ferry > Colt Python > RPG-7

Ruger 22 Charger
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > VZ 61 > Ruger 22
MP5 > Tec-9 > SIG SG552 > Thompson > Harpers Ferry > FN P90 > Ruger 22

Ruger LCP
MP5 > Tec-9 > SIG SG552 > Luger P08 > Ruger LCP

Ruger LCR
MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK G36E > Ruger LCR

Ruger Mark II
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > Ruger MK II

Ruger New Vaquero
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > New Vanquero

Ruger No. 1
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > MAC-10 > S&W Sigma > DP 27 > Ruger No.1
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > New Vanquero > TT > DP 27 > Ruger No.1

Ruger Old Army
MP5 > Tec-9 > SIG SG552 > Thompson > Harpers Ferry > Welrod > Mossberg 500 > Super Redhawk > Ruger Old Army

Ruger SR9
MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK G36E > Ruger LCR > Walther PP > B.A.R. > Ruger SR9

Ruger Super Redhawk
MP5 > Tec-9 > SIG SG552 > Thompson > Harpers Ferry > Welrod > Mossberg 500 > Super Redhawk

S&W M&P .40
MP5 > Beretta 92 > SIG SG 550 S > UZI > MP40 > Buck Mark > AK-47N > HK UMP > COP > S&W M&P
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > MAC-10 > S&W Sigma > DP 27 > M4 > ZIS > M134D > COP > S&W M&P
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > New Vanquero > TT > DP 27 > M4 > ZIS > M134D > COP > S&W M&P

S&W Model 53
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > S&W M53

S&W Schofield
MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army > PM > Walther P38 > TAR-21 > S&W Schofield
MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK G36E > Ruger LCR > Mauser 1914 > S&W Schofield

S&W Sigma
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > MAC-10 > S&W Sigma

Scorpion VZ 61
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > VZ 61

SIG P228
MP5 > Tec-9 > SIG SG552 > Thompson > Browning HP > SIG P228

SIG SG 550 Sniper
MP5 > Beretta 92 > SIG SG 550 S

SIG SG 552 Commando
MP5 > Tec-9 > SIG SG552

SKS M59/66
MP5 > Tec-9 > CZ-75 > Sten > Jericho > SKS M59/66
MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army > PM > HK SL9SD > SKS M59/66

Springfield XDm
MP5 > Tec-9 > SIG SG552 > Thompson > Browning HP > XDm
MP5 > Tec-9 > SIG SG552 > Luger P08 > LR 300 ML > XDm

Sten MK II
MP5 > Tec-9 > CZ-75 > Sten

Steyr AUG A2
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Steyr AUG

Steyr Scout
MP5 > Beretta 92 > SIG SG 550 S > PPSH > Derringer > Ruger MK II > Remington 870 > Steyr Scout

Stg.44/MP44
MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK G36E > Ruger LCR > Stg.44

TAR-21
MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army > PM > Walther P38 > TAR-21
MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK G36E > Ruger LCR > Mauser 1914 > S&W Schofield > TAR-21

Thompson M1928A1
MP5 > Tec-9 > SIG SG552 > Thompson

Tokarev Pistol
MP5 > Beretta 92 > SIG SG 550 S > Borchardt > New Vanquero > TT

Uzi Full Auto
MP5 > Beretta 92 > SIG SG 550 S > Uzi

Walther P38

• MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army > PM > Walther P38
  
• MP5 > Tec-9 > SIG SG552 > Luger P08 > LR 300 ML > XDm > Walther P38
  
• MP5 > Tec-9 > SIG SG552 > Thompson > Browning HP > XDm > Walther P38

Walther PP

• MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK G36E > Ruger LCR > Walther PP

Webley MK VI

• MP5 > Tec-9 > SIG SG552 > Luger P08 > Colt SA Army > PM > Walther P38 > TAR-21 > Webley
  
• MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester > HK G36E > Ruger LCR > Mauser 1914 > S&W Schofield > TAR-21 > Webley

Welrod

• MP5 > Tec-9 > SIG SG552 > Thompson > Harpers Ferry > Welrod

Winchester 1873

• MP5 > Tec-9 > CZ-75 > Sten > Jericho > Winchester

ZIS-3* (37,500 Exp + 25 credits)

• MP5 > Beretta 92 > SIG SG 550 S > Borchardt > MAC-10 > S&W Sigma > DP 27 > M4 > ZIS
  
• MP5 > Beretta 92 > SIG SG 550 S > Borchardt > New Vanquero > TT > DP 27 > M4 > ZIS
  
• MP5 > Beretta 92 > SIG SG 550 S > UZI > MP40 > Buck Mark > AK-47N > HK UMP > COP > M134D > ZIS