Cloth
Everything you can equip. The Holster hotkey is "H" and can hide any Handgun.
Springfieldrifle
The Springfieldrifle and its possible modifikations.
Fallblockrifle
The Remington rollingblockrifle and its possible modifikations.
Guns
The Springfield rifled Musket, Model 3 Revolver, Colt Single Action Revolver, Pump Action Shotgun, Colt Navy Revolver and sawed off double barrel. Those have no modifikations.(yet)
Trade
The blue Mailbos to sell canned goods or any ingots, the catalog and its paced down version to buy stuff and the money to do so.
1866 Winchester
The 1866 Winchester and possible modifikations.
Revolverbullets
Revolverbullet and its possible modifikations and storage item.
Volcanic
The Volcanicpistol and its possible modifikation.
Consumables
Everything you can Eat, Drink or Smoke.
.22 Varmint
The .22 Varmint pump action rifle and its possible modifikations.
CQC
The Sharp weapons.
Coachgun
Doublebarrelshotgun and its possible modifikations.
Bulltets
All other bullets and if possible their storage item.