How to Collect a Dynamic Op Phone in MW4 DMZ La Grande Vie DMZ How to Loot Counterfeit Cash from Pinged NK Soldiers in MW4 DMZ Where to Use the Blackmarket Weapons Locker Key in MW4 DMZ Where to Find and Use the Gun Store Weapons Locker Key in MW4 DMZ MW4 DMZ Best Traits MW4 DMZ System Requirements MW4 DMZ Release Date How to Collect a Dynamic Op Phone in MW4 DMZ La Grande Vie DMZ How to Loot Counterfeit Cash from Pinged NK Soldiers in MW4 DMZ Where to Use the Blackmarket Weapons Locker Key in MW4 DMZ Where to Find and Use the Gun Store Weapons Locker Key in MW4 DMZ MW4 DMZ Best Traits MW4 DMZ System Requirements MW4 DMZ Release Date
Game Guides

Where to Find and Use the Gun Store Weapons Locker Key in MW4 DMZ

Green Gun Store Weapons Locker in Songdo Wharf showing the unlock prompt.
Credit: Call of Duty / Activision; footage: Christian Konopatzki.
On this page 4 sections

At DMZ Level 16, you can get the Rare key in the Explosives Equipment Kit: the Gun Store Weapons Locker Key.

This key opens specific cabinets at these exact destinations:

Where to Find It

Rare Gun Store Weapons Locker Key card naming western Cheongun Village and northern Songdo Wharf.
Credit: Call of Duty / Activision; footage: Christian Konopatzki.

Northern Songdo Wharf

  • Follow the interior staircase down into the store’s lower floor.
  • Look for an information counter room with tall green metal lockers behind it.

Cheongun Village Gun Store

  • Located in western Cheongun Village (not Songdo Wharf). Approach any cabinet whose prompt reads “Gun Store Weapons Locker – Locked.”

How to Obtain It

You can get this Rare key from two different rewards:

  1. Explosives Equipment Kit at Level 16: This kit contains Frag Grenades, Sticky Grenades, C4, Proximity Mines and a Gun Store Weapons Locker Key for your inventory.
  2. Trap Equipment Kit at Level 42: The same level also gives you Razor Wire Traps, Trip Wires, Proximity Mines, Claymores and another key to add to the Stash.

At the FOB, open the earned kit at Survival Kits to unpack it into Stash. Then equip the key through Stash/Loadout before deploying; a key left at the base cannot open a field locker.

Using It

  1. Approach one of the green cabinets whose prompt reads “Gun Store Weapons Locker – Locked.” Note: These are not general shop doors or regular lockers; check their required-key prompts.
  2. Use your carried Gun Store Weapons Locker Key on it to open the cabinet.
  3. Inside, you’ll find weapons and other loot that can be added to your Stash or equipped at the FOB after extraction.

Key Takeaways

  • Songdo Wharf: Follow interior stairs down into the store; look for tall green lockers behind an information counter room.
  • Cheongun Village Gun Store: Approach a row of similar-looking cabinets with matching prompts. These are not general shop doors or regular lockers, so check their required-key prompts.

Additional Tips:

  • Control Unit and Zip Gun pickups inside the cabinet at Songdo Wharf (observed in one example) do not guarantee loot tables for other locations; weapons extracted remain your property after deployment. A Secure Slot can hold the key during a field mission. Extracting a gun keeps that individual weapon. Extract its Weapon Manual to unlock repeated purchases from the Gunsmith.

Black Market Key Distinction: The Recon Equipment Kit at DMZ Level 46 gives a Black Market Weapons Locker Key, not this Gun Store Weapons Locker Key. The two keys are distinct and serve different purposes in Hajin’s shops and storage facilities. The Level 19 Recon Equipment Kit gives the Police Station Key.