Stockpile is a Tier One skill in Roland's Support tree that regenerates ammo for all Player Characters near the Scorpio Turret. The type of ammo it regenerates is based on the currently held weapon of each character. If Roland has acquired this skill, his Scorpio Turret will radiate a blue perimeter while it's deployed, indicating the area of effect for Stockpile; provided a teammate is within this blue circle, they receive the ammo regeneration bonus.
Players near the Scorpio Turret regenerate ammo for the weapon currently in their hands.
+(1...5) Ammo Regeneration Rate
Ranks beyond 5 may be acquired through the use of class mods.
Similar to how Tediore's legendary weapons regenerate ammo, weapon types with a large reserve pool like Submachine Guns and Combat Rifles have more bullets regenerated over time than weapon types with a small reserve pool like Sniper Rifles and Rocket Launchers.