Zipper is a legendary pistol in Borderlands 4 manufactured by Daedalus. It is obtained randomly from any suitable loot source, but has an increased chance to drop from Leader Willem located in The Excrucible - Grindstone of the Worthy, in Carcadia Burn on Kairos.

Special Weapon Effects

Who's the shot caller now?

• Prison Rules – Gain +75% Critical Damage and +75% Damage when hitting a target in the back.

Notes

• This Zipper always spawns with iron sights.
• The Zipper will never spawn with any alternative firing mode.

Trivia

• The red text “Who’s the shot caller now?” references prison slang for a gang leader or decision-maker.
• Paired with the Prison Rules effect, the phrase implies the wielder has taken charge — becoming the “shot caller” by turning the weapon’s high-damage backshots into dominance over foes.

• The name Zipper may also play on its rapid-fire behavior, with bullets “zipping” through targets.
  

v • e Daedalus manufacture in Borderlands 4 Gear Common BunkerCoverFoxholeHoarder InheritorPillboxStimStockpilerUptick Legendary AccumulatorCollector GathererGuardian Angel HealthraiserHephaestianHoney BadgerPacemakerScionStewardSuper Soldier Weapons Common Bonn-91CaliburnDurendalF.A.N.G.Frag Grenade GCXPainterS23Spec-Tec Legendary Acey MayBloody LumberjackBodBuzz Axe DarkbeastFirst Impression FuseLuty MadladMercrediMissilaserOscar MikeProwler RangefinderStar Helix Zipper Pearlescent ScrewstonianSoul Survivor

v • e Pistols in Borderlands 4 Common Bonn-91CucaKittyLemmaLotusMukiPocketshotPunctS23Widget Legendary Budget DeityBullyHardpointInscriberKing's GambitLucky CloverNoisy CricketPhantom FlameQueen's RestRangefinderRoachRouletteRuby's GraspSan Saba SongbirdScoot'N'ShootSeventh Sense ShalashaskaShammy KablammySideshowSunspotZipper Pearlescent HandcannonHerald Soul Survivor