Are there guns which regenerate ammo?

Question

In Borderlands 1 I had a great pistol which only had a 2-shot clip but reloaded almost instantly and it also regenerated ammunition over time, fast enough that it basically had infinite ammo. I haven't found a gun in BL2 that has this ability, are there any? I'm playing as Commando and I've noticed Gunzerker class mods that seem to grant this ability, but I was hoping there are guns that do it too. The need to stop questing and go searching through containers for ammo or find an ammo vending machine is a little annoying.

Answer 1

There is one gun that exists that doesn't have "ammo regen", but doesn't consume bullets.

The Infinity pistol, taken from the wiki:

The Infinity is widely regarded as one of the more powerful weapons, and probably the most rare in Borderlands 2. Its combination of special effects; no ammo consumption, fixed multiple projectile spread and the fact that the user can still maintain full movement speed while aiming down the sights make a lethal combination.

As an extra note, you'll need to have at least 1 bullet of pistol ammo, or the infinity will not fire.

If you decided to buy the Ultimate Vault Hunter Upgrade pack, which not only grants you a bigger level cap (Level 61), it also grants the ability to find Pearlescent weapons.

IN regards to this question, the only known Pearlescent weapon that regenerates ammo is the Avenger, a Tediore submachine gun that regenerates ammo slowly. So yes, there is at least one gun that does regenerate ammunition.

Taken from the wiki:

The Avenger is an above-average submachine gun in most respects, but as with most Tediore weapons its primary use is reload-throwing. The storm of bullets it creates is very useful in a crowd, and the additional explosion is just icing on the cake. As with the top-tier Tediore weapons of old, the Avenger regenerates ammo of its type. As Tediore weapons can now be reload-thrown, this ability proves to be much more useful than it originally was and extends your ability to use it in prolonged combat. This ability generally proves redundant for Gunzerkers, but is nonetheless one of the factors that make it a viable weapon for use with any class.

Answer 2

Near as I can tell, no there are no guns with ammo regen.

A quick Google search turns up many similar threads, obviously people are missing it from Borderlands 1. Some alternatives:

• Play the Gunzerker. He has class mods for personal and team ammo regen, and the "Gunzerking" class ability, which regenerates ammo for all of his guns (unlocked very early). Gunzerker also has class skills for increasing ammo capacity. Play this guy, and you'll never have an ammo problem (in my experience).
• Apparently certain shields exist which "capture" bullets that are shot at (and hit) you.
• Use Eridium to expand your ammo capacity for your favorite guns.