Large RP-74M Ammo Box

In a room beneath the hanging bus. Shoot the padlock to gain access to a keypad, then keep the symbol you see next to it in mind - it’s scratched onto four vehicles in the scrapyard to the south-east, and their license plates will tell you the code.

If you’d rather save yourself some time, put in code 5578 to access another room where this attachment sits on a shelf.

Inside a duffel bag next to the pipes. Accessed by dropping down from above, or jumping from the ceiling of the nearby building.

Inside a keypad-locked room on the hotel’s top floor. If you’d like to try and figure out the code yourself, the digits are hidden in these notes:

• Stalker’s Note about the Zone
• Stalker’s Note about Friendship
• Stalker’s Note about a Successful Run
• Stalker’s Note about Bloodsuckers
• Note about Dogs
• Note about Boars
• Note about Debts
• Note about Artifacts

You can also find the code by scrolling down.
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13263622

On the ground near a toppled shelf inside the building.