One of the best weapons to use in the current beta for Call of Duty: Modern Warfare 3 is the MCW, an Assault Rifle that can be incredibly powerful with the right loadout. This rifle functions best as a mid-range weapon that can be useful in a variety of situations. A recreation of the fan-favorite ACR rifle from older entries in the series, this gun requires certain attachments to reach its full potential.

The rapid rate-of-fire from the MCW makes the Gunner Vest Perk a must-have ability, letting you spawn with max ammo for the weapon in Modern Warfare 3. Scavenger Gloves are also great pieces of gear that give you more mobility, allowing you to chase down enemies or position yourself in the right place to use the rifle. Similar to a loadout for the MG38 gun in Modern Warfare 2, maneuverability is important when wielding the MCW.

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Best Attachments for the MCW in Modern Warfare 3

Call of Duty: Modern Warfare 3 MCW Assault Rifle

When finding the best attachment parts for the MCW, make sure to also equip the Munitions Box as your Tactical Gear before loading into a multiplayer match. Much like the intense matches seen in Call of Duty: Warzone, you'll want to have as much ammunition as possible for the fast-paced combat of Modern Warfare 3. The strength of the MCW gun makes it far more important to consider instead of grenades or other equipment.

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Slot

Attachment

Description

Muzzle

Casus Break

Greatly reduces recoil when firing the MCW for little to no cost of other traits.

Stock

MCW Lancer Tactical Stock

Improves the Aim-Down-Sight speed of the MCW as well as the Sprint-to-Fire speed. This attachment also reduces the bullet spread of the gun during both hip fire and tactical shooting.

Rear Grip

RB Talon-X3 Grip

Greatly reduces recoil when firing the MCW for little to no cost of other traits.

Barrel

Second Line Mammoth Heavy

Increases the damage range of the MCW while improving the velocity of the bullets fired. Additionally, your overall strafing speeds is greatly improved when using this attachment.

Underbarrel

Chewk Angled Grip

Greatly reduces recoil when firing the MCW for little to no cost of other traits.

Magazine

40 Round Mag

A larger magazine that lets you fire more bullets with the MCW before having to reload.

While many of these attachments or the MCW could change when Call of Duty: Modern Warfare 3 launches, this loadout can be considered one of the best in the current open beta for online multiplayer.