★ Free Flawless Crystal and Legendary Tool
☆ S3 Reloaded New Gun: BAL-27 Best Loadout
★ S3 Reloaded New Dark Aether Easter Egg Keys
☆ Zombies Map | Dark Aether Interactive Map
★ Rarity vs Pack-a-Punch Damage Chart
☆ Camo Tracker | New One Trick Camo
The Keystone Handle is a gun attachment found under the Carry Handles attachment category of Modern Warfare 3 (MW3). Check out our guide to learn how to unlock the Keystone Handle and find out all compatible guns for this attachment!
List of Contents
The Keystone Handle attachment can be unlocked by leveling up the following guns in MW3 multiplayer, Zombies, or Warzone:
| Weapon | Required Level |
|---|---|
 FJX Imperium
|
Raise the FJX Imperium to Level 6 |
Alternatively, players who have reached Account Level 25 can opt to complete Armory Unlock challenges to get the Keystone Handle attachment, early.
Once you unlock this feature, modify your chosen gun at the Gunsmith and select the Keystone Handle from the Carry Handle attachment slot of your weapon. This should activate its Armory Unlock contract, allowing you to complete Daily and Bonus Challenges to get it earlier.
| Guns That Can Use the Attachment | ||
|---|---|---|
|
FJX Imperium
|
||
| Attachments By Type | |||
|---|---|---|---|
| Barrel | Stock | Ammunition | Muzzle |
| Rear Grip | Optic | Underbarrel | Magazine |
| Receiver | Laser | Comb | Trigger Action |
| Guard | Bolt | Arm | Rail |
| Carry Handle | Lever | Loader | Wire |
| Conversion Kit | |||
| All Related Attachments | ||
|---|---|---|
| Field-Wrapped Handle | Keystone Handle | |
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