The Persian spear, known in Old Persian as "Aršti", was six-feet long, with a broad iron leaf-shaped spearhead similar to the Spartan's Dory spear. The spear also had a round counterweight on the opposite end from the spearhead for a balanced, easily wielded weapon. Historically the counterweight has been described in the shape of a silver or gold pomegranate or apple, to denote rank, and distinguish nobility from commoners (As the "Immortals" accepted both origins in separate divisions). A common soldier's spear was of the same design, although balanced by a far more modest bronze sphere.
The spear was the Immortals' primary weapon. The weapon was usually used one-handed in an overhand fashion, accompanied by a shield; although it could be used two-handed. The round counterbalance could also be used as a bludgeoning weapon, as demonstrated in the show. One of the key advantages of the spear was that Persian Immortals were trained on its use both as infantry and cavalry. During the test in show, the Persian spear accurately killed two human-shaped targets from the back of a scythed chariot. The first target was stabbed in the nape of the neck, piercing the carotid artery and the jugular vein and causing death by rapid bleedout. The second target was stabbed directly in the heart and dragged behind the chariot for several feet.
A longer variation of this spear was used by a high rank among the Immortals; the 'apple bearers'. These were the royal bodyguards and so the most elite members of the army.