Flash drive with data on a submachine gun muzzle break
Cs icon flash drive black
General Characteristics

Flash drive


0.05 kg

Clear Sky

Installing a muzzle brake allows recoil to be reduced significantly.
- Ingame item description.

The Flash drive with data on a submachine gun muzzle break is a mission item in S.T.A.L.K.E.R.: Clear Sky.

General informationEdit

The flash drive contains upgrade data for a Viper 5 submachine gun and can be delivered to Gray in the Clear Sky base at the Great Swamps for a reward of 1125 RU, after which he will be able to apply the upgrade to the player's weapons.


"Backpack on corpse" stash

Location of the stash

The flash drive is located in a stash at the Great Swamps named "Backpack on corpse". The location of the stash can be bought from Nimble for 800 RU.

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