9-millimeter ammo is a staple ammunition in many games and in real life. It is a pistol caliber round that is often fed into sub-machine guns.
In Ring of Elysium is one of 7 ballistic ammunitions in RoE as of 12/8/2018. It has the lowest weight of any ammunition in the game at 0.375 per unit. (Glider Pack can carry 250 units or ~660 9mm bullets) It can be used by the Glider Pack's Glock-17, and two worldspawn SMGs. The MP5 and MPXSD. The Item in-game is an orange box.