both easy
cartridges or belt...same "bo-bo" level to open, unless youre a complete dumbass...well considering the belt...jus rip open the pretty foil unveiling the almighty belt of pellets...then take a toothpick and poke them down into the mighty abyss of the "magic potion" of benzyl alcohol...lol im jus being a dick...get the belt..its easy..make yourself a nice 4gram kit..40days of yummy fina