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The subject of this article appears in S.T.A.L.K.E.R.: Shadow of Chernobyl.

The "Tunder" 5.45 is a unique variant of the Tunder S14 assault rifle, modified to fire the 5.45×39mm caliber, featured in S.T.A.L.K.E.R.: Shadow of Chernobyl.

Shadow of Chernobyl[]

The given barrell[sic] is the excellent work of one of the stalkers-craftsmen who managed to work the rifle to by able to fit the more widespread 5.45 mm bullet.


The "Tunder" 5.45 has no difference compared to the original Tunder S14 minus the different caliber and much higher reliability; it takes 20000 shots to fully degrade a "Tunder" 5.45 from 100% to 0%, whereas the Tunder S14 only takes 10000 shots.[1] On the other hand, the "Tunder" 5.45 features the disadvantages of the 5.45x39mm caliber - i.e. lower penetration, making the weapon less effective against exoskeleton-clad opponents. However, it also features the advantages - namely the 5.45 is one of the most common ammo types of the game, easily found from the beginning to the end of the game, making not uncommon to have high amounts of ammunition for the weapon.

The most important thing about "Tunder" 5.45 is that, despite being chambered in 5.45×39mm, it has the same damage value as its 9×39mm parent. This makes it the clear-cut best 5.45mm caliber weapon in the game. While it won't do as much damage as the normal Tunder S14 because of worse ammunition modifiers, the 5.45mm ammunition is much more common, lighter and has better range. One more minor downside of the weapon itself – along with its ammunition – is an accuracy worse than that of the default variant.

As "Tunder" 5.45 can be obtained even at the start of the game, after gathering 20000 RU, it can be easily considered as the best weapon available until reaching the Army Warehouses. Its only downside compared to Fast-shooting Akm 74/2 or available NATO rifles (IL 86, TRs 301) is a much worse accuracy, so the player's abilities in long-range combat are vastly limited. Impressive damage per second, very good handling (allowing sights to center faster), common lightweight ammunition type, and integrated grenade launcher.

An interesting note is that the development of the "Groza" was to design a compact 9x39 assault rifle for military purposes. Internally, the mechanics were based on and are nearly identical to that of the AKS-47U- one of the weakest assault rifles in the game. So by scaling this gun back to 5.45 it essentially becomes the AKS-74U again in all but name, but the damage is significantly scaled up because of game mechanics.


There are three ways to acquire this unique weapon.

  • At the beginning of a new campaign, the "Tunder" 5.45 may be bought from Sidorovich. From the moment the player starts a new game, he will randomly offer the weapon for sale at a price of 20 000 RU. It is somewhat rare but can be coaxed to appear in the trader inventory by reloading. However, the "Tunder" 5.45 will only appear up until the Marked One speaks to Wolf after defeating the Bandits that captured Nimble. Speaking to Wolf after rescuing Nimble will permanently remove the "Tunder" 5.45 from Sidorovich's inventory, although giving Sidorovich Nimble's flash drive will not remove it.
  • Sidorovich may also sell this unique weapon after the player meets Doctor in the Agroprom Underground, although it is not as useful at this stage of the game.
  • This weapon is also held by a Duty member, Barin, who can be found in Rostok at the start of the game. After the player enters Rostok, Barin may stay there, although he can randomly go in five directions:
  1. To the Garbage Duty outpost, if any of guard there is killed
  2. To the Dark Valley (only after the player completed the Lab X-18 mission), at the outpost at the Garbage entrance, sitting there with other Duty stalkers
  3. To the Wild Territory, at the Rostok entrance
  4. On a rare occasion, to the Yantar scientists bunker, but only if the Lab X-16 part of the main quest is completed, if one of the guards is killed
  5. To the Military Warehouses.


  1. gamedata/configs/misc/unique_items.ltx - condition_shot_dec factor is set to 0.00005, whereas that of the Tunder S14 is set to 0.0001