Angstrum

The  is a heavy pistol of Corpus design that fires tiny but powerful rockets. Its charge-based trigger allows for firing precise single shots, or emptying the entire magazine as a spread barrage for engaging single heavy targets or large groups. It was released in Update 13.3.0.

Characteristics
This weapon deals damage.

Advantages:
 * Silent
 * Has a very high base damage - highest damage of all secondaries.
 * Each rocket explodes roughly at a blast radius of 3m.
 * Has a very high damage capability when modded.
 * Has two firing modes; single or charged shot.
 * Charged shot fires extra projectiles.
 * Single shot has very good accuracy.
 * High status chance at close-medium range with charged attack due to firing all rockets at once.
 * Can be fired with a partial charge to fire only part of its magazine.
 * Has a polarity.

Disadvantages:
 * Very high recoil generated with every shot.
 * Weapon can not be kept charged. It shoots immediately after fully charged.
 * Charge is also slow, and dependent on the number of rockets in the magazine. More rockets means a slower charge time.
 * Must reload after each full charge.
 * Fully charged shot consumes the entire magazine, even when magazine mods are used.
 * Charged barrage spreads rockets out, reducing the effective range considerably.
 * Dangerous to use in close quarters, as a charged shot can potentially kill the player.
 * Has an extremely limited amount of maximum ammo (30) and draws from the sniper ammo pool, which is among the rarest of all ammo drops.
 * Difficult to use charged shots at long range due to large spread.
 * Fairly slow reload speed.
 * Rockets have a short delay after firing before being able to fire again.
 * Multishot will cause single shots to spread out, eliminating its long range potential.
 * Small projectile size and slow projectile speed can make long range shots difficult.
 * Though small and fast, the projectiles can be struck in mid-air. Like the Ogris, this causes them to explode prematurely.
 * Potential for a charged barrage to chain-react, with potentially lethal results if user is caught by multiple overlapping blast areas.

Tips

 * Use Magnum Force if you wish to cover a greater area (as there is no secondary counterpart for Firestorm), as the damage bonus granted by this mod can help counteract any loss of damage due to the accuracy penalty. Bear in mind this is at the expense of the Angstrum's charged shots at long range.
 * If charged and/or a Multishot mod is equipped (Barrel Diffusion, Lethal Torrent), the rockets will fire in a precise shape based on how many rockets are fired, making it easier to aim.
 * Increasing the magazine size will result in a higher projectile count when firing a totally charged shot. Bear in mind that increasing the magazine size will also increase the time it takes to charge the shot.
 * Using Slip Magazine, Ice Storm, and Tainted Clip will increase the Angstrum's magazine to 7 (rounded from 6.9).
 * Combining the magazine build with Barrel Diffusion and/or Lethal Torrent will yield the chance of a totally charged shot firing 21 projectiles.
 * Using the previous combination with Mirage's Hall of Mirrors can yield a total of 105 projectiles in one salvo. This is obviously not recommended for low configs.
 * Gunslinger and/or Lethal Torrent speeds up the charge time, allowing for faster firing rates. This is especially important if one is maximizing magazine capacity, as the charge time for a large magazine can be long.
 * Mag's Bullet Attractor synergizes well with this weapon, as it allows all the rockets fired to be redirected unto a single target, dealing massive amounts of damage. This is most useful against heavy units like Napalms, and against bosses that have no weak spots like Ambulas.
 * It is highly recommended to equip a Pistol Ammo Mutation mod to remove practically all ammunition problems.
 * Since the Angstrum shares ammo capacity with a primary that also draws from the sniper pool, a Sniper Ammo Mutation on the primary will also benefit the Angstrum.
 * Lethal Momentum can increase rocket velocity by up to 40%, significantly reducing the amount of lead time required for distant targets.
 * The innate polarity can somewhat limit elemental modding potential, thus making it a less desirable polarity for elemental modding. If you wish to focus more on elemental damage, then it is recommended to either ignore the polarity or use Forma to turn it into a more suitable polarity.

Bugs

 * Although the Angstrum uses sniper ammo, the Pistol Ammo Mutation mod is used, as it is a secondary.
 * The Sniper Ammo Mutation mod does not function while the Angstrum is the drawn weapon.
 * Due to the Angstrum's nature of using sniper ammo since its ammo capacity was fixed, it will alter the ammo capacity of primary weapons that utilize sniper ammo if they are equipped simultaneously.

Trivia

 * The Angstrum's name is derived from Angstrom, which is a unit of measurement that is roughly 0.1 nanometers in length.
 * This weapon appears to be of Corpus design, making it their second explosive weapon following the Penta.
 * When charging, the rockets in the chamber lower into the gun itself.
 * The Angstrum's concept of a conventional-appearing weapon (pistol in this case) firing rockets is similar to that of the Gyrojet from the 1960s.
 * Its boxy design is similar to the IMI Uzi MP-2 machine pistol, including the way the weapon can be held.