Stats

Acquisition

• This mod can be purchased unranked from Baro Ki'Teer for 2,995  2,995 and 1,000,000 Credits 1,000,000. Note however that Baro Ki'Teer's stock changes with each appearance, and may not have this item available every time.

Historical

• This was originally distributed to the top 100 ranked players in the Informant Event, based on the number of Informer kills.
• For a short time after Update 10.6 (2013-10-30) it could have been acquired via transmutation^[1]. This was due to a bug where all mods (including unreleased ones) became obtainable through transmutation. This has since been fixed, but players who obtained the mod this way were allowed to keep them.
• During Devstream 17, 18, 43, 49, 59, 94, 107, 112 and 116 one lucky winner was given a Primed Chamber mod through random selection. Two winners were randomly selected during Devstream 121.
• A single Primed Chamber was given out as the first place reward for the Mirror the Mod Contest.
• A Primed Chamber was given out upon reaching $4,000.00 during the WarframeFanChannels Extra-Life event in February 2017.
• The option of being given either a Primed Chamber or a Legendary Core was given by [DE]Sheldon at TennoCon 2017 to five people who caught MTG cards he threw out into the audience. He later signed these cards as proof of the prize.
• A Primed Chamber was given to an attendee of the TennoVIP 2018 in Cologne, Germany. The winner was selected randomly from a list of attendees by [DE]Rebecca and [DE]Megan.
• Two Primed Chambers were given out during QuietteShy's Twitch stream via random selection on January 16, 2019.

Notes

• Despite its name, Primed Chamber is not related to Primed Mods, and was in fact added in the game long before the first Primed Mods. As such, it can be equipped simultaneously with  Charged Chamber.
• Primed Chamber is multiplicative with base-damage mods. For example, a  Vectis installed with a max ranked Primed Chamber and  Serration will deal 225 × (1 + 165%) × (1 + 100%) = 1,192.5 damage.
• Stacks additively with  Charged Chamber for up to 140% bonus damage.
• If used with Ammo Efficiency bonuses, it will provide bonus damage to a shot as long as the magazine counter is at ${\displaystyle {\text{Max Magazine}}-1}$ after a shot is fired.
  • For example, a  Vulkar with  Energized Munitions will have the 4th, 5th, 6th, and 7th shots buffed by Primed Chamber as the magazine counter is at 6 - 1 = 5 during those shots.
  • When used alongside 100% ammo efficiency, make sure one shot is missing from the magazine, since the buff doesn't apply on a completely full one.

Tips

• This mod goes particularly well with the  Vectis as it has a one-shot magazine, giving the bonus to all shots fired.
  • When combined with  Depleted Reload , this also applies to the  Vectis Prime.

Trivia

• [DE]Rebecca has stated the following on the topic of people being upset over Primed Chamber being exclusive:

• Due to the release of  Charged Chamber it seemed unlikely that Primed Chamber will be released as a drop however the possibility of Primed Chamber appearing in another event has been confirmed in Livestream 17. DE said they were going to have it as a Gradivus Dilemma reward, but "didn't get that far" and are looking for the next appropriate event to add it to.
  • Since Hotfix 27.1.1 (2020-02-11), the mod has been added to Baro Ki'Teer's rotation with no prior notice.

See Also

•  Charged Chamber
•  Synth Charge a similar mod for Secondary Weapons that functions on the last shot.

References

Patch History

Primary Mods Edit

Non-Shotguns Shotguns All Damage Base  Heavy Caliber •  Serration •  Amalgam Serration Physical  Crash Course •  Fanged Fusillade •  Piercing Caliber •  Piercing Hit •  Rupture •  Sawtooth Clip Elemental  Cryo Rounds ( Primed) •  Hellfire •  High Voltage •  Infected Clip •  Malignant Force •  Rime Rounds •  Stormbringer •  Thermite Rounds •  Wildfire Faction Bonus  Bane of Corpus ( Primed) •  Bane of Orokin ( Primed) •  Bane of Grineer ( Primed) •  Bane of Infested ( Primed) •  Bane of The Murmur Critical Hits Chance  Argon Scope ( Galvanized) •  Critical Delay •  Point Strike •  Proton Jet Multiplier  Bladed Rounds •  Hammer Shot •  Vital Sense Status Chance  High Voltage •  Thermite Rounds •  Malignant Force •  Proton Jet •  Rifle Aptitude ( Galvanized) •  Rime Rounds Duration  Continuous Misery •  Hunter Track Multishot  Split Chamber ( Galvanized) •  Vigilante Armaments Fire Rate  Shred ( Primed) •  Speed Trigger •  Vigilante Fervor •  Vile Acceleration Magazine  Magazine Warp ( Primed) •  Wildfire Reload  Fast Hands ( Primed) •  Tactical Reload Exilus  Aerial Ace •  Aero Periphery •  Agile Aim •  Ammo Drum •  Cautious Shot •  Eagle Eye •  Mending Shot •  Stabilizer •  Tactical Reload •  Terminal Velocity •  Twitch •  Vigilante Supplies •  Vile Precision Assault rifle-only  Guided Ordnance •  Gun Glide •  Overview •  Rifle Ammo Mutation ( Primed) •  Spring-Loaded Chamber •  Tainted Mag •  Tactical Reload Beam-only  Combustion Beam •  Sinister Reach Bow-only  Arrow Mutation •  Split Flights •  Thunderbolt Sniper-only  Aero Agility •  Charged Chamber •  Depleted Reload •  Harkonar Scope •  Primed Chamber •  Sharpshooter •  Sniper Ammo Mutation ( Primed) •  Target Acquired Misc  Adhesive Blast •  Firestorm ( Primed) •  Internal Bleeding •  Hunter Munitions •  Metal Auger •  Shred ( Primed) •  Vigilante Offense Damage Base  Blaze •  Point Blank ( Primed) •  Vicious Spread Physical  Accelerated Blast •  Breach Loader •  Disruptor •  Flechette •  Full Contact •  Shredder •  Sweeping Serration Elemental  Blaze •  Charged Shell ( Primed) •  Chilling Grasp ( Primed) •  Chilling Reload •  Contagious Spread •  Frigid Blast •  Incendiary Coat •  Scattering Inferno •  Shell Shock •  Toxic Barrage Faction Bonus  Cleanse Corpus ( Primed) •  Cleanse Orokin ( Primed) •  Cleanse Grineer •  Cleanse The Murmur Critical Hits Chance  Blunderbuss •  Critical Deceleration •  Laser Sight •  Motus Setup Multiplier  Ravage ( Primed) •  Shrapnel Shot Status Chance  Frigid Blast •  Motus Setup •  Nano-Applicator •  Scattering Inferno •  Shell Shock •  Shotgun Savvy ( Galvanized) •  Toxic Barrage Duration  Lingering Torment •  Hunter Track Multishot  Hell's Chamber ( Galvanized) •  Vigilante Armaments Fire Rate  Accelerated Blast •  Frail Momentum •  Repeater Clip •  Shotgun Barrage ( Amalgam) •  Vigilante Fervor Magazine  Ammo Stock ( Primed) •  Burdened Magazine Reload  Chilling Reload •  Lock and Load •  Seeking Fury •  Tactical Pump ( Primed) Exilus  Aero Periphery •  Broad Eye •  Counterbalance •  Double-Barrel Drift •  Fatal Acceleration ( Galvanized) •  Lock and Load •  Narrow Barrel •  Shell Compression •  Shotgun Ammo Mutation ( Primed) •  Silent Battery •  Snap Shot •  Soft Hands •  Vigilante Supplies Misc  Hunter Munitions •  Seeking Force •  Seeking Fury •  Vigilante Offense  Aero Periphery •  Hunter Munitions •  Hunter Track •  Shivering Contagion •  Vigilante Armaments •  Vigilante Fervor •  Vigilante Offense •  Vigilante Supplies