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Shotgun

Rezi 12 in MW4 DMZ: stats, unlock and Apex Attachment

A modular semi-auto 12-gauge that cycles quickly and recovers smoothly between shots. It has eleven attachment categories, the most of any launch weapon.

150RPM
6Magazine
24Reserve
60Weapon levels
4Unlock level

How it compares to other shotguns

WeaponFire rateMagReserveMag dumpWeapon lvlsUnlock (MP lvl)
Rezi 12150 RPM6242.4s604
Warlord105 RPM14428s6032

Attachment slots

The Rezi 12 has 11 attachment categories. In MW4 you unlock each attachment once, and it then works on every weapon that accepts it.

We are not publishing our own attachment-by-attachment build until we have tested this weapon in the launch version. Until then, the in-game Gunny optimizer in Create-a-Class and the FOB Gunsmith can suggest close-range, balanced and long-range builds from the attachments you own.

Apex Attachment: Rezi 12 Enforcer

Switches to pump action and adds a side-saddle of explosive slugs, which stretches its useful range well past normal shotgun distances.

Getting the Rezi 12 in DMZ

The Rezi 12 unlocks at player level 4, the same level Create-a-Class opens, so it is available from the start.

In DMZ the player level only matters for leveling, because weapon levels and attachment unlocks are shared with Multiplayer. To actually carry a Rezi 12 into Hajin:

Any Rezi 12 you extract with can also be upgraded at the Gunsmith as a one-off copy. You can carry two weapons in and out of a deployment, or more with a Weapon Backpack.

FAQ

What is the Rezi 12's fire rate in MW4?

Activision lists the Rezi 12 at 150 RPM, which is the highest of 2 shotguns.

How do you unlock the Rezi 12?

The Rezi 12 unlocks at player level 4, the same level Create-a-Class opens, so it is available from the start. That is a Multiplayer player level. In DMZ you get the gun itself by looting it, buying it from the Vendor, or extracting with its Weapon Manual so you can buy it at the Gunsmith.

What is the Rezi 12's Apex Attachment?

Rezi 12 Enforcer. Switches to pump action and adds a side-saddle of explosive slugs, which stretches its useful range well past normal shotgun distances. You unlock it by reaching the weapon's maximum level (60).

See all 33 MW4 weapons or the DMZ starter loadouts.

Sources

Last reviewed 2026-10-20. Game data can change with patches. If you spot something outdated, email contact@loadoutvault.com.