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Chamber Gun
Chamber Gun
Type: Semiautomatic
Quality: C Quality Item
Magazine Size:
Max Ammo:
Reload Time:
Fire Rate:
Class: NONE
Sell Creep Price: 21 Money
Unlock Method: Visit all Chambers at least once
Introduced in: AFTA Indicator
Ammonomicon Entry
Product of Environment
Transforms based on Chamber.

This gun uses an advanced shape-memory alloy. When exposed to different environmental stimuli it reacts with the salts in Gungeoneer’s bodies and transforms into a location-specific gun. Master rounds can also influence the shape of this curious weapon.

Chamber Gun is a gun. Its firing mode and appearance changes depending on which floor the player is on.

Notes[ | ]

  • Synergy Master's Chambers - Each Master Round the player carries permanently unlocks the mode of its respective floor. Reloading the Chamber Gun with a full magazine cycles through the unlocked modes.
  • In the Keep of the Lead Lord, the Chamber Gun is a single target, semi-automatic gun.
  • In the Oubliette, the Chamber Gun fires poison skulls.
  • In the Gungeon Proper, the Chamber Gun is a shotgun that is somewhat similar to The Membrane.
  • In the Abbey of the True Gun, the Chamber Gun is a piercing crossbow.
  • In the Black Powder Mine, the Chamber Gun is a melee-range, high damage drill.
    • Having Flak Bullets equipped, this form will fire small, spark-like bullets in front of it, with significant damage output. This is a good combination with Orbital Bullets.
  • In the Resourceful Rat's Lair, the Chamber Gun is a rocket launcher which fires cheese wheels that encheese enemies, similar to those fired by the Elimentaler.
  • In the Hollow, the Chamber Gun is a combination of Glacier and The Exotic; it fires an ice cube projectile that bounces off walls and enemies, leaves a trail of water, and eventually bursts into several homing rockets.
  • In the R&G Dept., the Chamber Gun is a pencil which functions similarly to the Wood Beam, except that when you reload it, it flips to the other side (Pencil-> Eraser -> Pencil).
  • In the Forge, the Chamber Gun is a beam weapon that shoots 2 homing beams of lava in a V-pattern.
  • In Bullet Hell, the Chamber Gun is a homing chain beam similar to the Raiden Coil, hitting all visible enemies at once for high damage.
  • All modes share the same ammo pool. Firing a shot in one mode reduces the ammo of the other modes by a proportional amount. For example, firing one shot in its Hollow mode uses up 10 shots of the base mode, because the base mode has 10 times the max ammo.
  • The Chamber Gun is one of the three weapons in the NONE gun class that can be obtained in normal play, the others being the Slinger and the Kruller Glaive.
  • If the player has Chance Bullets and does not switch to the Chamber Gun from a floor that does not have a Master Round (such as the Oubliette, Abbey of the True Gun, Resourceful Rat's Lair, or the R&G Dept.), other guns have a chance to shoot bullets from that firing mode.

Bugs[ | ]

  • For some players, firing the Chamber Gun in its Hollow mode causes a game crash.
  • If the player has Ancient Hero's Bandana, after changing modes, ammo will not be quadrupled, but maximum ammo is still quadrupled.
  • When in the R&G Dept., the gun may not switch to the pencil. Dropping the gun will change it to the pencil, but it will revert on reload.
    • May be a function of which, if any, Master Rounds are present (Tested with 2, 3, & 4).
  • If the Chamber Gun is taken into any floor where it cannot usually be taken (for example, the various characters' pasts) using game modification, reloading the gun on a full clip will cause the game to crash as it has no valid form to switch to.
  • If the gun has been Duct Taped to another, the combo may be lost upon arriving in the R&G Dept.
  • If the player has the fifth Master Round and is in Bullet Hell, switching from the Forge variation to the Bullet Hell variation while firing will cause both forms to fire simultaneously, with no extra ammo cost.

Gallery[ | ]

See also[ | ]