One Pump Chump

One Pump Chump Borderlands 3 Legendary Showcase

About the One Pump Chump:

The One Pump Chump is a Legendary Weapon in Borderlands 3. This Jakobs Shotgun hits hard, it does a lot of damage and since it only shoots 1 projectile you can use it as a sniper. The tradeoff of the One Pump Chump is the 1 ammo magazine size, so you have to reload after each shot unless the legendary effect kicks in. The One Pump Chump’s special effect is that it has a 50% chance to not consume ammo when being fired. This means you got a good chance to fire off a couple of rounds before needing to reload.



Special Weapon Effect:

“I swear, that has never happened before.”

  • Fires a single powerful projectile.
  • 50% chance to not consume ammo when fired.

How to get the One Pump Chump?:

The One Pump Chump can be obtained from any loot source but has a high chance of dropping from One Punch who is located in Lectra City on Pandore.

Drop Rate:

The Drop Rate of the One Pump Chump is 15%


  • The flavor text and the name of the gun, One Pump Chump, are references to premature ejaculation; e.g., a man who can only last for a “pump” or two.
  • This weapon drops from ‘One Punch’ which is an easter egg to the anime, One-Punch Man

Let Me Know What You Think

6 0


  1. Rommel Daniel Quiñones Arteaga

    Its a beast for mobing with flak

  2. Justin Smith

    Depends on the build it’s useful in somebody’s hands…

  3. Slade

    It’s pearlescent for me.

  4. Chris Todd Hester

    On moze it’s a 10 out of 10

  5. You can easily unlock him by using Lever twice then the Valve on the left once.


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