Handguns:

Pistol - Glock 17
Combat Pistol - H&K USP Compact
AP Pistol - Vanilla (colored)
Stun Gun - Taser X26
Pistol .50 - IMI Desert Eagle
SNS Pistol - Vanilla (colored)
Heavy Pistol - Springfield Armory TRP
Vintage Pistol - FN Model 1910
Flare Gun - Vanilla (colored)
Marksman Pistol - Vanilla (colored)
Heavy Revolver - Smith & Wesson 686

Assault/SMG:

Micro SMG - IMI Mini UZI
SMG - H&K MP5
Assault SMG - FN P90 (Reminder: Gotta watch all 68 Seasons of Stargate again. Jaffa, kree!)
Combat PDW - Sig Sauer MPX
Machine Pistol - TEC 9 (Happy 25th Birthday to awesome movie Boyz n the Hood)

Shotguns:

Pump Shotgun - Remington 870
Sawed-Off Shotgun - Mossberg 500
Assault Shotgun - Auto Assault-12
Bullpup Shotgun - Kel-Tec KSG
Heavy Shotgun - Saiga-12K
Double Barreled Shotgun - Vanilla (colored)
Musket - Random Internet Found

Rifles:

Assault Rifle - AK-74M
Carbine Rifle - Colt M4A1
Advanced Rifle - IWI Tavor
Special Carbine - H&K G36C
Bullpup Rifle - FAMAS F-1 (Stay strong France! <3)
Compact Rifle - AKMSU

Machine Guns:

Shrewsbury MG - Vanilla (colored)
Combat MG - M249 LMG
Gusenberg Sweeper - Thompson M1928A1 (I don't quote any WWII movie now. That would be Fubar!)

Sniper Rifles:

Sniper Rifle - Remington 700/M40A3
Heavy Sniper - Barrett M82 (Demolition Ranch on YT anyone?)
Marksman Rifle - M39 EMR
RPG - Vanilla (colored)
Grenade Launcher - Milkor MGL
Minigun - M134 Minigun (If it bleeds, we can kill it. Arnold Schwarzenegger.)
Firework Launcher - Vanilla (colored)
Railgun - Vanilla (colored)
Homing Launcher - Vanilla (colored)

Thanks for your attention my fellow gamers. Be good humans.