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CoD Modern Warfare 2 (2022): How to Unlock M4 Platform Attachments

Attachments are a bit more confusing in 2022’s Modern Warfare, so let’s break down the M4 platform.

Customizing weapons has seen a big shakeup in Call of Duty: Modern Warfare 2. Unlocking attachments for the M4 platform (and all of the others) through CoD MW2’s multiplayer progress is not linear. It’s bewildering, and can often feel like you’re looking for a needle in a haystack.  

This has led to a resounding cry of where’s my god-damned [insert preferred thing here] on the internet, and not unreasonably so. If you’re looking for how to unlock the red dot sight in particular, you’re in the right place here; it’s an FSS Hurricane unlock, and detailed below. 

What a tangled web it all is. Luckily, we’ve got you covered, so let’s get into types of attachments, how to equip them, and all the attachments you’ll earn for levelling the M4 weapon platform. 

CoD MW2: How to Unlock All Attachments in the M4 Weapon Platform 

Unlike previous games, in which you unlocked weapons by ranking up, and then attachments by levelling up your weapons, this time the kit you need to tweak your guns is acquired by levelling up loads of different weapons. Attachments come in two forms this time too: 

Universal attachments – these can be used across every compatible weapon in the game:

  • Muzzle
  • Underbarrel
  • Ammunition 
  • Laser
  • Optic

Some are more universal than others though – where you can equip your optic of choice onto pretty much anything, ammunition will only be compatible with similar weapon types. They are designated as universal as these similarities don’t always sit within the same platform. 

For example, the 5.56 Armor Piercing ammo that unlocks when you get the M4 to level 9 can also be used on the M16, but not the other weapons on the M4 platform. It is, however, also equippable on the Lachmann 556 and STB 556, which are on the Lachmann and Bruen Bullpup platforms respectively, thus making it “universal.” 

Weapons platform-specific attachments – these are compatible with receivers within the same platform:

  • Barrel
  • Magazine
  • Stock
  • Rear Grip

Again, there are restrictions here. Just because two weapons sit in the same platform doesn’t mean that they will necessarily share all of these types of attachments. 

An example of this is the 14” Carbine Shroud barrel, which you’ll get at M16 level 2, and can only be equipped on the M16 and the M4. And as there is only one SMG on this platform in the form of the FSS Hurricane, any of these types of attachments you unlock won’t be shared across SMGs on other platforms. 

It’s also not enough just to have unlocked attachments though – you’ve also gotta level up the weapons themselves to be able to equip them. You can see what level each attachment category is unlocked via the gunsmith menu, and once these requirements are met, you’ll have access to everything you’ve unlocked so far in that category that is compatible with that weapon. 

It can be confusing, but this list of all M4 weapon platform attachments help you find what you’re looking for. 

Call of Duty Modern Warfare 2: M4 Attachments

All of the attachments for the M4 in Call of Duty: Modern Warfare 2.

Assault rifle The flagship rifle of the M4 platform. This reliable workhorse is a jack-of-all-trades that performs well in most combat scenarios. 

LevelUnlockType
2SZ Lonewolf – opticUniversal attachment
3Echoline GS-X – muzzleUniversal attachment
411.5” T-H4 Barrel – barrelM4 platform attachment
545 Round Mag – magazineM4 platform attachment
6FSS Sharkfin 90 – underbarrelUniversal attachment
7Corio Precio Factory – stock§M4 platform attachment
8Sakin ZX – rear gripM4 platform attachment
95.56 Armor Piercing – ammunitionUniversal attachment
10Tempus Trench Pro – barrelM4 platform attachment
11Tempus P80 Strike – stockM4 platform attachment
121MW Laser Box – laserUniversal attachment
13FTAC Recon – receiverNew weapon
14Demo D50 Buffer Tube – stockM4 platform attachment
15Hightower 20” Barrel – barrelM4 platform attachment
16Xten Grip – rear gripM4 platform attachment
1760 Round Mag – magazineM4 platform attachment
18556 Icarus – recieverNew weapon
19Demo Fade Pro – stockM4 platform attachment
20Weapon tuningFine-tune attachment performance on this weapon

Unlocking FTAC Recon Attachments in CoD MW2

How to unlock attachments for the FTAC Recon in Modern Warfare 2 (2022).

Battle rifle A high powered .458 battle rifle that delivers severe damage at medium range. 

LevelUnlockType
2Optic categoryEquip optic attachments to this weapon
35 Round Mag – magazineM4 platform attachment
4.458 Frangible – ammunitionUniversal attachment
5FTAC Dreadnought – muzzleUniversal attachment
6419mm EXF – barrelM4 platform attachment
7Rear grip categoryEquip rear grip attachments to this weapon
8Ravage-8 – stock?M4 platform attachment
9.458 Overpressure +P – ammunitionUniversal attachment
10Underbarrel categoryEquip underbarrel attachments to this weapon
11Shred CP90 – muzzleUniversal attachment
12Drexsom Prime-90 – opticUniversal attachment
13.458 High Velocity – ammunitionUniversal attachment
14Laser categoryEquip laser attachments to this weapon
15Support CP90 Grip – rear gripM4 platform attachment
16FSS Hurricane – receiverNew weapon
17.458 Hollow Point – ammunitionUniversal attachment
187.5” Tempus Firebrand – barrelM4 platform attachment
19Demon Helix T7 – muzzleUniversal attachment
2015 Round Mag – magazineM4 platform attachment
21.458 Armor Piercing – ammunitionUniversal attachment
22Bull Rider 16.5” – barrelM4 platform attachment
23Weapon tuningFine-tune attachment performance on this weapon

Unlocking the Red Dot Sight & Other FSS Hurricane Attachments (CoD Modern Warfare 2)

How to unlock M4 platform weapon FSS Huricane's attachments in CoD: MW2.

Submachine gun the FSS Hurricane sacrifices range and stopping power for increased ammo capacity and enhanced stability. 

LevelUnlockType
2Optic categoryEquip optic attachments to this weapon
3Cronen Mini Red Dot – opticUniversal attachment
4Laser categoryEquip laser attachments to this weapon
5Xten Razor Comp – muzzleUniversal attachment
6Rear grip categoryEquip rear grip attachments to this weapon
7FSS Cannonade 16” – barrelM4 platform attachment
8Underbarrel categoryEquip underbarrel attachments to this weapon
9Demo Quicksilver Collapsed – stockM4 platform attachment
10FSS-X7 – barrelM4 platform attachment
115.7X28mm Hollow Point – ammunitionUniversal attachment
12Phantom Grip – rear gripM4 platform attachment
13XRK Knockout Breach – muzzleUniversal attachment
14Demo Quicksilver Stock – stockM4 platform attachment
15Weapon tuningFine-tune attachment performance on this weapon

 How to Unlock the 556 Icarus attachments in Modern Warfare 2 

How to unlock the attachments for the 556 Icarus, a M4 platform weapon, in CoD MW2.

Light machine gun The 556 Icarus is a lightweight squad-support weapon in the M4 platform. Increased ammo capacity does not significantly impact mobility. 

LevelUnlockType
2Underbarrel categoryEquip underbarrel attachments to this weapon
3Muzzle categoryEquip muzzle attachments to this weapon
4FTAC Coldforge 16” Barrel – barrelM4 platform attachment
5Optic categoryEquip optic attachments to this weapon
6100 Round Box Mag – magazineM4 platform attachment
7Laser categoryEquip laser attachments to this weapon
8Demo Precision Elite Factory – stock?M4 platform attachment
9Forge Tac Delta 4 – opticUniversal attachment
10FTAC Castle Comp – muzzleUniversal attachment
11Rear grip categoryEquip rear grip attachments to this weapon
12FTAC SB – barrelM4 platform attachment
13M16 – receiverNew weapon
14VX Pineapple – underbarrelUniversal attachment
15Ammo categoryEquip ammunition attachments to this weapon
16Weapon tuningFine-tune attachment performance on this weapon

Unlocking M16 attachments: CoD MW2 M4 Platform Attachments

Unlocking the M4 platform weapon attachments in CoD MW2.

Assault rifle Tuned for mid to long-range engagements, the M16 features a 3-round burst rifle that has increased range and stability. 

LevelUnlockType
2Muzzle categoryEquip muzzle attachments to this weapon
314” Carbine Shroud – barrelM4 platform attachment
4Laser categoryEquip laser attachments to this weapon
5C400 Door Knocker – muzzleUniversal attachment
6Rear grip categoryEquip rear grip attachments to this weapon
715 Round Magazine – magazineUniversal attachment
8Optic categoryEquip optic attachments to this weapon
911.5” Carbine Shroud – barrelM4 platform attachment
10Underbarrel categoryEquip underbarrel attachments to this weapon
11SZ Pro-7 – opticUniversal attachment
12Stock categoryEquip stock attachments to this weapon
13SPW 40mm – underbarrelUniversal attachment
14Ammo categoryEquip ammunition attachments to this weapon
15D15 Grip – rear gripM4 platform attachment
16Weapon tuningFine-tune attachment performance on this weapon

And there you have it; all of the attachments for the M4 weapon platform. There’s no reason not to use the time grinding these out to work towards unlocking camos too, if you’re that way inclined. Make sure to check out our guide on how to level up guns faster in MW2 to get through these unlocks quicker, too.