Helmets
helmets can range from $10 to $200 maybe even more depending on what brand or if it is a full head facemask or half and also if it has decals on it.
tactical body armor
allows for protection against paintballs and the price usually depends on what brand or durability or them. most priced at $20 to $150.
tactical pants
just used for protecting against legshots or other areas that need to be protected. usually priced at $40 to $200.
gloves
Everyone hates getting shot in the fingers so gloves provide the protection you need against it. you could use gloves around the house but these provide the extra protection you need. the price range is $20 to $60.
hoppers
loads the paintballs into the gun. the prices range from $10 to $80.