Since there's so many weapons and power-ups in each game, I will be linking websites that people have listed all the weapons on! As for power-ups, I will do the same. Although I will try my best to showcase all weapons from each game.

POSTAL WEAPONS
Postal Weapon List


POSTAL 2 WEAPONS
Postal 2 Weapon List
Postal 2: Corkscrew RuLes! Weapon List


POSTAL III WEAPONS
Postal III Weapon List


POSTAL REDUX WEAPONS
Postal Redux Weapon List


POSTAL 4 NO REGERTS WEAPONS
Postal 4: No Regerts Weapon List


POSTAL BRAIN DAMAGED WEAPONS
Postal Brain Damaged Weapon List


POSTAL ITEMS
Postal Item List

POSTAL 2 ITEMS
Postal 2 Item List
Postal 2: Corkscrew RuLes! Item List

POSTAL III ITEMS
Postal III Item List

POSTAL REDUX ITEMS
Postal Redux Item List

POSTAL 4: NO REGERTS ITEMS
Postal 4: No Regerts Item List