In Decay/Weapons

Handguns

 * .44 Revolver


 * Blowback Pistol


 * Semi-Automatic Pistol


 * Tactical Pistol


 * X-Frame Revolver

Assault Rifles

 * Assault Rifle


 * Bolt-Action Rifle


 * Bullpup Rifle


 * Burst Rifle


 * Carbine Rifle


 * Lever-Action Rifle


 * Semi-Automatic Rifle


 * SOCOM Rifle

DLC

 * Combat Rifle

Shotguns

 * Assault Shotgun


 * Automatic Shotgun


 * Lever-Action Shotgun


 * Pump-Action Shotgun


 * Semi-Automatic Shotgun

DLC

 * Combat Shotgun


 * Sawed-Off Shotgun

Sub-Machine Guns
Machine Pistol


 * Mini SMG


 * Sub-Machine Gun


 * Tactical SMG

DLC

 * Defence SMG

Sniper Rifles

 * Bullpup Sniper Rifle


 * Precision Sniper Rifle


 * Sniper Rifle


 * Supressed Sniper Rifle

Light Machine Guns

 * Light Machine Gun


 * Machine Gun

DLC

 * Assault Machine Gun

Launchers

 * Grenade Launcher


 * Rocket Launcher

DLC

 * Multi-Grenade Launcher

Other

 * Crossbow

DLC

 * Flamethrower