The Tetra is a 
Corpus assault rifle sporting a large magazine size for sustained fire. The rifle features an average rate of fire and fair accuracy for mid to long range combat.
Characteristics
- This weapon deals primarily
Puncture damage. - Can use the Tetra-exclusive
Focused Acceleration and Kinetic Ricochet mods.
Advantages over other Primary weapons (excluding modular weapons):
- Normal Attack (wiki attack index 1)
- Above average magazine (60)
- Above average ammo max (540)
- Above average fire rate (6.67 attacks/sec)
- Very high disposition (●●●●● (1.50x))
Disadvantages over other Primary weapons (excluding modular weapons):
- Projectiles have travel time.
- Normal Attack (wiki attack index 1)
- Very low crit chance (4.00%)
- Low total damage (32)
- Below average status chance (20.00%)
- Very low crit multiplier (1.50x)
See WARFRAME Wiki:Stat Comparison/Percentiles for more details.
Comparisons:
Tetra (Normal Attack), compared to 
Prisma Tetra (Normal Attack):
- Lower base damage per projectile (32.00 vs. 38.00)
- Lower total damage (32 vs. 38)
- Lower base critical chance (4.00% vs. 10.00%)
- Lower base critical multiplier (1.50x vs. 2.00x)
- Lower base status chance (20.00% vs. 24.00%)
- Lower average damage per tap (32.64 vs. 41.8)
- Lower burst DPS (217.70 vs. 295.94)
- Lower sustained DPS (178.10 vs. 239.43)
- Lower fire rate (6.67 attacks/sec vs. 7.08 attacks/sec)
- Lower Mastery Rank required (3 vs. 4)
- Higher disposition (●●●●● (1.50x) vs. ●●●●● (1.45x))
Comparisons:
- Tetra (Normal Attack), compared to
Tenet Tetra (Normal Attack):
- Lower base damage per projectile (32.00 vs. 60.00) (excluding any Progenitor bonus)
- Lower total damage (using max +60% Progenitor bonus if applicable) (32 vs. 96)
- Lower base critical chance (4.00% vs. 28.00%)
- Lower base critical multiplier (1.50x vs. 2.20x)
- Lower base status chance (20.00% vs. 30.00%)
- Lower average damage per tap (using max +60% Progenitor bonus if applicable) (32.64 vs. 128.25)
- Lower burst DPS (using max +60% Progenitor bonus if applicable) (217.70 vs. 641.28)
- Lower sustained DPS (using max +60% Progenitor bonus if applicable) (178.10 vs. 563.76)
- Higher fire rate (6.67 attacks/sec vs. 5.00 attacks/sec)
- Smaller magazine (60 vs. 80)
- Larger max ammo capacity (540 vs. 480)
- Larger ammo pickup count (80 vs. 40)
- Faster reload time (2.00 s vs. 2.20 s)
- Lower Mastery Rank required (3 vs. 16)
- Higher disposition (●●●●● (1.50x) vs. ●●●●○ (1.20x))
Acquisition
The Tetra's blueprint can be purchased from the Market.
| Manufacturing Requirements | |||||
|---|---|---|---|---|---|
 30,000 |
 Control Module2 |
 Alloy Plate400 |
 Ferrite900 |
 Polymer Bundle100 |
Time: 1 Day(s) |
Rush:  40
| |||||
 Market Price: 125
|
 Blueprints Price:30,000
| ||||
This weapon can be sold for 
7,500.
Tips
- With a large portion (80%) of its total damage relying on Puncture, it is somewhat more viable to equip Piercing Hit and/or Piercing Caliber than with most weapons.
- Similarly, because the Tetra has no
Slash Damage, Sawtooth Clip and Fanged Fusillade are completely useless.
- Similarly, because the Tetra has no
- With its high recoil, Stabilizer is a good choice to make this weapon more useful at longer ranges.
- While the Tetra has less accuracy than the
Dera and weaker overall firepower than the 
Supra, it deals more damage than the former and has better handling than the latter, making it a good middle-ground weapon in terms of performance. It is also the only Corpus Primary energy weapon whose blueprint can be purchased off the Market, making it more accessible than the clan tech Dera and Supra. - Third lowest fire rate of all fully automatic rifles, after
Buzlok and 
Panthera.
Trivia
- True to the Tetra's description, the word "Tetra" is a Greek prefix meaning "four"
- The Tetra's battery-like magazines are attached on the muzzle.
- Each of the four "batteries" composes one-fourth of the gun's entire magazine size. Firing up to each quarter (15 rounds by default) round will cause a "battery" to eject.
- All remaining "batteries" will be ejected when reloading manually. The reload animation consists of pushing the stock in, removing the muzzle, and replacing it with a new muzzle complete with fresh batteries before pulling the stock back into place.
- It appears to fire from four distinct barrels, in a clockwise motion, starting at the top right barrel and ending at the top left.
Media
.png "Tetra- (1).png (727 KB)")
Tetra, when equipped in the arsenal
.png "Tetra- (2).png (674 KB)")
.png "Tetra- (3).png (742 KB)")
Tetra Skins
Patch History
Hotfix 25.3.2 (2019-07-12)
- Fixed enemies armed with the Tetra rifle having an ugly reload animation.
Update 22.12 (2018-02-09)
- Damage increased from 30 to 32.
- Status chance increased from 10% to 20%.
- Critical chance increased from 3% to 4%.
- Decreased recoil while aiming.
- Increased accuracy while aiming.
Hotfix: The Silver Grove 4 (2016-08-25)
- Increased damage of Tetra.
Update 17.10 (2015-11-04)
- Added Conclave mod, Focused Acceleration (Tetra) - Increase Projectile Speed by 80% when aiming.
Hotfix 17.0.5 (2015-08-07)
- Increased the damage of the Tetra in PvP.
Update 17.0 (2015-07-31)
- Added to available weapons for use in Conclave.
Hotfix 14.0.11 (2014-07-30)
- Damage multiplier normalized.
Update 13.1 (2014-04-23)
- Fixed the Tetra having an incorrect Conclave rating.
Hotfix 11.8.2 (2014-01-22)
- Accuracy Changes (increases) for Tetra (was 8.3, now is 18.2).
Update 11.8 (2014-01-22)
- Introduced.
See Also
- Prisma Tetra, the Prisma variant.
- Tenet Tetra, the Tenet variant.
- Focused Acceleration, a Tetra-exclusive Conclave mod.
