The Barnstormer is a long-range rocket-propelled grenade (RPG) launcher found throughout Columbia.
Like all Weapons, the RPG launcher can be upgraded at Minuteman's Armory Vending machines.
| Minuteman's Armory
| RPG Upgrades
| Weapon Upgrade
| RPG Damage Boost 1
| RPG Damage Boost 2
| RPG Clip Increase
| RPG Speed Increase
| Max Upgrade Cost
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