Best Modern Warfare 3 M4 loadout: Class setup, Attachments & Perks

The M4 is a versatile AR in Modern Warfare 3. Here are the top perks, attachments, and equipment to maximize its effectiveness.

The fan-favorite rifle since Call of Duty 4: Modern Warfare, the M4, hasn’t changed much. This reliable AR has been featured in every Modern Warfare game offering a strong all-around option for those interested.

Throughout Modern Warfare’s lifespan the M4 has established itself as a top-tier assault rifle. It is well-rounded with a fast fire rate, great TTK, and easy-to-control recoil. It truly is the weapon you pick when you want a primary that covers just about every scenario.

We’ve put together the best Modern Warfare 3 M4 loadout below, complete with the best attachments, Perks, and equipment.

Contents

• Best M4 MW3 loadout
• M4 MW3 loadout: Perks & Equipment
• How to unlock the M4 in Modern Warfare 3
• Alternatives to the M4 MW3 loadout

Best Modern Warfare 3 M4 loadout

• Muzzle: FTac Castle Comp
• Barrel: Hightower 20″ Barrel
• Optic: Cronen Mini Dot or Cronen Mini Pro
• Stock: Corio Precio Factory
• Rear Grip: Phantom Grip

Even when left stock the M4 is already a versatile assault rifle without many flaws. This gives us the freedom to build it how we want. To suit multiplayer’s fast pacing it’s best to optimize for mobility while also looking to reduce the M4’s recoil where possible.

For recoil control, we use both the FTac Castle Comp and Phantom Grip. These combine to significantly reduce recoil and make the M4 more accurate during sustained fire. In saying that, this M4 loadout is more suited to the shorter sightlines found in 6v6 than the likes of Ground War and Invasion.

To improve mobility it’s recommended to use both the Corio Precio Factory Stock and Hightower 20″ Barrel. The barrel improves ADS speed without any notable downsides making it a good choice for any build. Meanwhile, the stock massively improves ADS strafe speed, and tactical sprint speed.

The final attachment is the most flexible but we’ve opted for the Cronen Mini Pro to provide the clearest optic possible. Those comfortable with the M4’s iron sights should consider a suitable underbarrel or mobility improving laser instead.

The M4 has minimal recoil at medium to long-range.

Modern Warfare 3 M4 loadout: Perks & Equipment

• Vest: Overkill Vest
• Gloves: Scavenger Gloves
• Boots: Lightweight Boots
• Gear: Mag Holster
• Secondary: Expedite 12
• Tactical: Flash Grenade
• Lethal: Frag Grenade or C4

We’re opting for the Overkill Vest instead of the Infantry Vest, granting an extra primary weapon alongside perks, with weapon handling and reload buffs..

Choosing Scavenger Gloves ensures ammo drops from eliminated enemies, keeping you supplied. Lightweight Boots increase movement and swim speed, while Mag Holster speeds up reloads.

With this setup, you’ll stay stocked on ammo, reload faster, and swap weapons quickly, ideal for the primary weapon in the secondary slot.

The Expedite 12 shotgun, from Modern Warfare 2, boasts high damage, and with the Expedite L-Bolt attachment, it gains even faster fire rate, enhancing its stopping power.

How to unlock the M4 in Modern Warfare 3

Thanks to a new feature called Carry Forward, all players will have the opportunity to obtain, utilize, and level up the M4 in both Warzone and MW3 if they had acquired it previously in the last game.

If you haven’t played MW2, you can still unlock this gun in MW3, but it will take considerably more time. To unlock the M4, you must reach player level 55 and complete the associated challenge. You can find this challenge in the weapon selection menu within the loadout screen.

Alternatives to the Modern Warfare 3 M4 loadout

If you find that the M4 doesn’t quite cut it for you, then there are other options for you to try out such as the Lachman-556, which is just as versatile in all situations.

However, if you want something that packs more punch, the TAQ-56 is a fantastic option with it being the most used gun in MW2 and dominating Ranked Play loadouts.

That’s our guide for the best M4 loadout in MW3! For more content on the game, check out our guides below:

Best Modern Warfare 3 AR class loadouts | How to slide cancel in Modern Warfare 3 | Best controller settings in Modern Warfare 3 | All maps & modes | How to play Modern Warfare 3 at 120 FPS on PS5 | Modern Warfare 3 TTK | How long is the Modern Warfare 3 campaign? | Campaign mission list | How to fix packet burst | How to play MW3 Zombies in third person