The classic M4 Assault Rifle remains as potent as ever in Modern Warfare 2 Season 4. Dominate multiplayer with this recommended M4 loadout, featuring the best attachments, Perks, and equipment to enhance your performance.
Weapons like the Vaznev, SP 08, and TAQ-56 dominate the meta on Call of Duty Modern Warfare 2 multiplayer servers, but one weapon is more relevant than ever. The M4 is a staple of the CoD series, and the balanced Assault Rifle continues to dominate matches in Season 4.
Whether you’re a newcomer or a seasoned player in Modern Warfare 2, equipping the best weapon loadout is essential. We’ve compiled a list with the optimal attachments, Perks, and Equipment for you to maximize your performance with the M4.
- Best Modern Warfare 2 M4 loadout attachments
- Best Modern Warfare 2 M4 Perks & Equipment
- How to unlock M4 in Modern Warfare 2
- Best M4 alternatives in Modern Warfare 2
Best Modern Warfare 2 M4 loadout attachments

The M4 is a reliable AR in almost every CoD title.
- Muzzle: Echoless-80
- Laser: FSS OLE-V Laser
- Optic: Teplo Clear Shot
- Underbarrel: Corvus Masterkey
- Magazine: 60 Round Mag
We’re building the best Modern Warfare 2 M4 loadout to combine damage range and mobility, making it the perfect all-rounder for multiplayer. First, we’ve equipped the Echoless-80 Muzzle which helps with the M4’s horizontal and vertical recoil control, keeping the weapon on target at longer distances.
Then, the Corvus Masterkey Underbarrel and Teplo Clear Shot are key to this build. With Corvus Masterkey you will have a 12-round shotgun under the barrel, and with Teplo Clear Shot, your M4 will have a 5x optical sight with thermal target identification, making the M4 strong in short and long-range situations.
Finally, we recommend running the FSS OLE-V Laser to ensure your M4 still has mobility and aims to contend on smaller maps and tight situations.
Best Modern Warfare 2 M4 Perks & Equipment
- Base Perk 1: Bomb Squad
- Base Perk 2: Battle Hardened
- Bonus Perk: Fast Hands
- Ultimate Perk: Quick Fix
- Lethal Equipment: Semtex
- Tactical Equipment: Flash Grenade
- Field Upgrade: Dead Silence
Modern Warfare 2 has some well-balanced Perk packages, but we advise creating your own selection for the best M4 loadout. For the Base Perks, Bomb Squad will protect you from the many explosives flying around the map, and Battle Hardened ensures Flash Bangs won’t blind you for as long.
Bonus Perks are unlocked later in the game, and here we recommend Fast Hands. As we haven’t equipped an extended mag, you might find yourself reloading often, so speeding up the process is more than welcome. Then, for your final Ultimate Perk, Quick Fix is a must-have to instantly regenerate health after getting a kill.
When it comes to Equipment, you can’t go wrong with Semtex to deal some hefty damage and Flash Grenades to blind enemies before you move in for the kill.
For the Field Upgrade, we recommend taking Dead Silence, as you’ll be able to sneak around and get the drop on your enemies.

The M4 is one of the most versatile weapons in Modern Warfare 2.
How to unlock the M4 in Modern Warfare 2
The good news is that the M4 is unlocked right from the get-go in Modern Warfare 2, so you don’t need to do anything to get hold of the Assault Rifle.
That being said, the ability to create your own loadout and use the Gunsmith isn’t available until level 4, so there’s some work to be done before you can start playing around with different builds. Be sure to check out how to level up weapons fast so you can unlock all of these attachments.
Best M4 alternatives in Modern Warfare 2
If you want an alternative to Modern Warfare 2’s classic M4, then the Kastov 762 is another strong option thanks to its high damage and low recoil. Also, the Kastov-74u is the perfect hybrid between Assault Rifle and SMG.
For more on Modern Warfare 2, be sure to check out our other guides:
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