Lost Alpha Wiki
Register
Advertisement

The Tunder S14 is an assault rifle that appears in S.T.A.L.K.E.R.: Lost Alpha and S.T.A.L.K.E.R.: Shadow of Chernobyl.


An assault rifle combined with a grenade launcher. It is a very good type of assault rifle for the Zone conditions: it is compact, reliable, but universal and powerful. The Tunder S14 is one of the favorite rifles of the military stalkers.
- Inventory description

Overview[]

  • The OTs-14-4A Groza was introduced in 1994 by the TsKIB SOO (Central Design and Research Bureau of Sporting and Hunting Arms) in Tula, Russia.
  • Internally it is an exact copy of AKS-74U but in a bullpup configuration (action and magazine behind the trigger group) and chambered for 9x39mm ammunition.
  • Two variants exist in the game: "Tunder" 5.45 and in the Developer's Cut Personal "Tunder" 5.45 (v1.4000+).

Upgrades[]

Lost Alpha[]

List of upgrades
Level 1 upgrades.

Semi free roller locking system:

  • Price: 3600 RU
  • A roller locking system increases accuracy.
    • Accuracy: +12%


Expanded magazine:

  • Price: 4200 RU
  • Change standard magazines for larger ones.
    • Magazine: +10



Level 2 upgrades. Stop drive:

  • Price: 4200:
  • A synthetic installed behind the end of the step slide compresses it to increase accuracy.
    • Accuracy: +13%


Self sealing barrel:

  • Price: 4500 RU
  • A special mechanism that seals the barrel when firing, maximizing internal pressure.
    • Accuracy: -10%


Additional gas piston:

  • Price: 3360 RU
  • A second gas affects the slide mechanism, compensating for the recoil, which has a positive effect on the accuracy.
    • Recoil: +32%


Accelerated refire rate:

  • Price: 3600 RU
  • Despite its name, it replaces the regular bolt with an exposed bolt system: it should provide a higher rate of fire.
    • Rate of fire: +15%



Level 3 upgrades. Balancing parts:

  • Price: 4200 RU
  • Polymer parts which rigidly fix spring trajectory, reducing the sway.
    • Accuracy: +8%


Smoothing spray application:

  • Price: 4500 RU
  • The spray smooths out minor flaws in weapon mechanics, significantly increasing muzzle velocity.
    • Accuracy: +5%


Lock sealing couplings:

  • Price: 4500 RU
  • Sealing couplings help increase the pressure in the barrel and the muzzle velocity.
    • Accuracy: +4%


Ergonomically shaped receiver:

  • Price: 4320 RU
  • A more convenient shape of the grip makes handling weapon more comfortable, especially when firing on the move.
    • Handling: +16%


Receiver counterforce rotator:

  • Price: 4080 RU
  • A counterforce rotator installed in the receiver reduces weapon recoil.
    • Recoil: +26%


Lock gas amplification:

  • Price: 4320 RU
  • The lock's speed is amplified through the use of powder gases and a modified closing mechanism, significantly increasing the rate of fire.
    • Rate of fire: +26%


Short stroke gas piston:

  • Price: 4200 RU
  • Optimizing the gas piston increases the rate of fire.
    • Rate of fire: +10%


Rollback moderator:

  • Price: 3720 RU
  • Special slide parts compensate the movement of the slide, reducing recoil.
    • Recoil: +49%

Developer's Cut[]

List of upgrades
ID Icon Upgrade Description
Cost Effect Requirements
1A Ui inGame2 upgrade GromS14 1 Accelerated refire rate Despite its name, it replaces the regular bolt with an exposed bolt system: it should provide a higher rate of fire.
2300 RU

Rate of fire +10%

Tools for rough work (v1.4005+)

1C Ui inGame2 upgrade GromS14 2 Additional gas piston A second gas piston affects the slide mechanism, compensating for the recoil, which has a positive effect on accuracy.
2400 RU

Recoil -20% (v1.4002) / -15% (v1.4005+)

1D Ui inGame2 upgrade GromS14 3 Slide protective coating A protective coating increases the tightness of the receiver box, which positively affects reliability.
2400 RU

Reliability +15% (v1.4002) / +20% (v1.4005+)

1E Ui inGame2 upgrade GromS14 4 Short stroke gas piston Optimizing the gas piston increases the rate of fire.
3200 RU

Rate of fire +25% (v1.4002) / +20% (v1.4005+)

1F Ui inGame2 upgrade GromS14 5 Semi free roller locking system A roller locking system increases accuracy.
3300 RU

Accuracy +30% (v1.4002) / +25% (v1.4005+)

2A Ui inGame2 upgrade GromS14 6 Receiver counterforce rotator A counterforce rotator installed in the receiver reduces weapon recoil.
2000 RU

Recoil -10%

Tools for rough work (v1.4005+)

2C Ui inGame2 upgrade GromS14 7 Self sealing barrel A special mechanism that seals the barrel when firing, maximizing internal pressure.
2400 RU

Bullet velocity +20% (v1.4002) / +15% (v1.4005+)

2E Ui inGame2 upgrade GromS14 8 Rollback moderator Special slide parts compensate the movement of the slide, reducing recoil.
3400 RU

Recoil -30% (v1.4002) / -20% (v1.4005+)

2F Ui inGame2 upgrade GromS14 9 Stop drive A synthetic part installed behind the end of the step slide compresses it to increase accuracy.
3400 RU

Accuracy +30% (v1.4002) / +25% (v1.4005+)

3A Ui inGame2 upgrade GromS14 10 Additional return spring Installing additional springs with a reverse spiral can reduce the recoil without affecting bullet trajectory.
2000 RU

Recoil -10%

Tools for rough work (v1.4005+)

3C Ui inGame2 upgrade GromS14 11 Balancing parts Polymer parts which rigidly fix spring trajectory, reducing the sway.
2400 RU

Accuracy +20%

3D Ui inGame2 upgrade GromS14 12 Return mechanism protective coating A protective coating increases the reliability, and most importantly, further isolates the receiver from the environment.
2400 RU

Reliability +15% (v1.4002) / +20% (v1.4005+)

3E Ui inGame2 upgrade GromS14 14 Lock sealing couplings Sealing couplings help increase the pressure in the barrel and the muzzle velocity.
3300 RU

Bullet velocity +25% (v1.4002) / +20% (v1.4005+)

4A Ui inGame2 upgrade GromS14 15 Receiver counterbalance An enhancement mounted on the front of the receiver that reduces recoil.
2000 RU

Recoil -10%

Tools for rough work (v1.4005+)

4C Ui inGame2 upgrade GromS14 16 Ergonomically shaped receiver A more convenient shape of the grip makes handling the weapon more comfortable, especially when firing on the move.
2500 RU

Handling +15% (v1.4002) / +25% (v1.4005+)

4E Ui inGame2 upgrade GromS14 17 Modular receiver A modification of the bull-pup receiver that makes its maintenance easier.
3400 RU

Reliability +25% (v1.4002) / +30% (v1.4005+)

4F Ui inGame2 upgrade GromS14 18 Smoothing spray application The spray smooths out minor flaws in weapon mechanics, significantly increasing muzzle velocity.
3300 RU

Bullet velocity +30% (v1.4002) / +20% (v1.4005+)

5A Ui inGame2 upgrade GromS14 19 Expanded magazine Change standard magazines for larger ones.
2750 RU

Mag. size +10


Notes[]

  • Does not need to be upgraded in order to use the scope and silencer attachments.
  • Though its upgrades are expensive, this weapon can be made into one of (if not the most) accurate assault rifles in the game.
  • Ammo is rare and is most often found in Traders shops.
  • The PRM Weapon Pack in v1.4007 changes the weapon:
    • Silencer no longer attachable
    • Instead of the standard Warsaw Pact scopes only the PO 4x34 scope (introduced in the PRM Weapon Pack) can be attached

Trivia[]

Gallery[]

Advertisement