Get A Free "Call of Duty League" Charm for Modern Warfare & Warzone -

If you have previously signed up for the Call of Duty League then you would have gotten an email with a redeemable code to get the free Call of Duty League charm right away. For those who haven’t signed up for the Call of Duty League updates, you can sign up here, and then you would receive an email with your unque weapon charm code which you can redeem and use it right away. You are required to restart your application of Call of Duty Modern Warfare and or Call of Duty: Warzone to be able to receive the charm after redeeming it. Check out the new content and updates coming this week to both Modern Warfare and Warzone here.

The Call of Duty League post has given instructions saying:

Get a free, limited-edition Call of Duty League weapon charm when you sign up for updates, news, and announcements from the League. You’ll receive an email with your unique weapon charm code and instructions to redeem it.

Additional information:

You must have an Activision game account in good standing and valid Call of Duty: Modern Warfare game license to redeem weapon charm.
If currently an active subscriber to The Call of Duty League, you will receive a promotional code for the Call of Duty League Weapons Charm.
New subscribers, who opt-in below, will be rewarded on a first come first subscribe basis until a total of 400K codes are distributed.
ALL required fields in the form below must be filled out to be eligible to receive The Call of Duty League Weapons Charm.
Promo codes are one-time use and cannot be redeemed after May 4, 2021.

Source: Call of Duty League