- Innate damage - effective against Machinery and Fossilized.
- Grenades explode in a 4 meter radius upon impacting a surface or enemy.
- Initial hit and explosion apply status separately.
- Explosion does not need direct line of sight to deal damage and will penetrate walls.
- Pinpoint accuracy.
- Can use the Penta-exclusive and , as well as the launcher-exclusive mod .
- Can benefit from ( ), , and .
- Innate damage – less effective against Ferrite Armor.
- Grenades have slow travel time and heavy arcing.
- Low critical chance and status chance.
- Explosion inflicts self-stagger.
- Explosion has linear damage falloff from 100% to 50% from central impact.
- Can only have five grenades out at once.
- Extra projectiles generated by Multishot will count towards the limit of five live grenades.
- Slow reload speed.
- Grenades have a high bouncing capability which makes it hard to stack on a desired spot.
- Low magazine size.
- Extremely low ammo capacity of 20; requires just 4 reloads to fully deplete all ammo reserves.
- Draws from the rare sniper ammo pool.
- Penta (Grenade Detonation), compared to Secura Penta (Grenade Detonation):
- Higher base damage per projectile (350 vs. 300)
- Higher total damage (350 vs. 300)
- Lower base critical chance (10% vs. 26%)
- Lower base status chance (10% vs. 26%)
- Higher average damage per shot (385 vs. 378)
- Lower burst DPS (385 vs. 756)
- Lower sustained DPS (256.67 vs. 441)
- Closer ending damage falloff distance (4m vs. 6m)
- Lesser max damage reduction at ending falloff distance (0.5x vs. 0.6x)
- Lower fire rate (1 round(s)/sec vs. 2 round(s)/sec)
- Smaller magazine (5 round(s) vs. 7 round(s))
- Smaller max ammo capacity (20 round(s) vs. 28 round(s))
- Different polarities (None vs. )
- Lower Mastery Rank required (6 vs. 12)
- Higher disposition (1.35 vs. 1.3)
- Lack of an innate Sequence effect
- Penta (Grenade Detonation), compared to Carmine Penta (Grenade Detonation):
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- Detonations can be triggered while the player is performing other actions.
- The launch/flight of a grenade is silent (though the actual explosions are alarming, obviously).
- Grenades have no arming delay, and can be detonated instantly with the use of the Secondary Fire button.
- Grenades can be bounced around corners, off walls, and over low obstacles.
- Grenades that continuously bounce into enemies will deal impact damage with each collision.
- Grenades do not bounce when striking water, coming to a dead stop instead. This allows for easier setting of traps.
- Increasing the Magazine size of the weapon does not increase the 5 grenade limit.
- Though the grenade explosion does not destroy rockets from Bombards, impacts by the grenades from very accurate (and lucky) shots can.
- With Multishot, the second grenade is usually indistinguishable from the first, as they follow the same trajectory simultaneously and bounce in the same direction. They can be "separated" with negative accuracy from at a high enough rank.
- Grenades fired from the Penta are lobbed in a heavy arc, allowing the player to kill enemies hiding behind cover much more easily, as the detonation happens upon external trigger.
- Standing at a greater height allows for the grenades to be lobbed and bounce further, allowing the user to see the grenades better, as well as eliminating the worry of stagger.
- A maxed increases the blast radius from the initial 5 meters up to 6.2 meters (6.64 with Primed Firestorm), allowing more enemies to be caught in the blast.
- It is not recommended to use Punch Through mods as grenades can often go through the floor on some tilesets, making it impossible to bounce every time.
- can spawn a sixth grenade provided that the multishot procs when 4 grenades are already out
- While multishot mods are commonly considered necessary to increase damage output, due to the Penta's mechanics of careful detonation and limited grenades active at once, it's not as much of an instant damage increase as with normal weapons. It can be useful for setting up a large number of grenades faster, however.
- Elemental mods such as are external from the main Blast damage, allowing the weapon to have 3 separate elemental combinations.
- Players can detonate grenades in mid-air to score headshots on targets below.
- The default color of the grenades can make it hard to see in the middle of a crowd of enemies or from their bouncing. Changing energy color can help with certain tile sets (e.g. do not use bright white for Corpus Outpost missions).
- Grenades will immediately explode when they hit Blunts, water surface, puddles from Tar-Mutalist Moa or Bulwarks.
- Penta derives from the Greek prefix of "five", which may refer to its magazine of 5 grenades.
- The Penta (and its variants) are the first and currently only weapons for which the magazine becomes visibly larger as magazine capacity is increased. With high enough capacity the magazine will even protrude out from the bottom of the magazine feed.
- The Penta formerly used instead of , despite still using sniper ammo. This was fixed in Update 17.5 (2015-10-01).
- The Penta was one of the first weapons with a non-static model: The magazine feeds up to the gun upon firing and the slide around the barrel are pulled back during reloading actions.
- The Penta was the first Corpus weapon to focus on explosive weaponry, followed by the in Update 21.3 (2017-08-02).
- The grenades are flat and rectangular, which is odd, considering their ability to bounce.
- Prior to Update 23.2 (2018-08-02), the augment changed the grenade model to be a short cylinder with concave ends. It still used the default grenade texture, which looked strange but was normally obscured by the grenades's blue glow.
- now causes the grenade to spin towards the enemy instead of staying flat.
- Prior to Update 18.5 (2016-03-04), caused grenades to explode after a set amount of time.
- This was the first weapon to have the Zoom capability replaced with a different function pre-Update 17.0 (2015-07-31).
- The Arsenal interface used to label only the damage of the grenade projectile impact, but now labels the damage of the projectile as well as the base damage seperately (350 base).
- In its Arsenal UI, it does not display its trigger function, though it functions as Semi-Auto, possibly because it deals damage on impact, unlike other Active trigger weapons.
Last updated: Hotfix 24.1.4 (2018-12-10)
- , an Infested grenade launcher.
- , a Grineer grenade launcher.
- , the Perrin Sequence custom version.
- , a special version of the Penta.
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