How to unlock all M4 Attachments in MW2

Every attachment and how to unlock them!

The M4 is the first Assualt Rifle that players will get their hands on in Modern Warfare 2, but it is also one of the strongest. Due to its precision and high velocity, the M4 is a weapon many players won't want to diverge from. Of course, unlocking the best attachments for the weapon requires leveling other guns to give the M4 what it needs. This is every attachment that the M4 can use and how to unlock them in Modern Warfare 2.

How to unlock all M4 Attachments in Modern Warfare 2

The M4 attachments players want may vary as it is pretty versatile in Modern Warfare 2. Players that want reduced recoil with high ADS speed might prefer one set of attachments over something that increases its bullet velocity and increases the player's movement speed. The best M4 builds require many different attachments from other weapons, which will help keep track of where to get each one.

Muzzle

AttachmentWeaponLevel
Corvus Slash Gen. 2TAQ-565
Dark KX30STB 55615
VLK Koloss Flash HiderKastov 54516
Broadhead-3DPLachmann-5566
Echoline GS-XTAQ-V16
Harbinger D20STB 5569
Echoless-80TAQ-5614
FSS Covert VHCR 5613
Gauge-9 MonoKastov-74u17
RF Crown 50TAQ-5616
Komodo HeavyLachmann-55618
XTEN Ported 290HCR 5616
FTAC Castle Comp556 Icarus10
XTEN Havoc 90Hastov 5458
SAKIN Tread-40STB 5564
C400 Door KnockerM165

Barrel

AttachmentWeaponLevel
14" Carbine ShroudM163
7.5" Tempus FirebrandFTAC Recon18
Tempus Trench ProM410
419mm EXF BarrelFTAC Recon6
Hightower 20" BarrelM415
11.5" T-H4 BarrelM44
11.5" Carbine ShroudM169

Laser

AttachmentWeaponLevel
SZ 1MW PEQSP-R 2082
Schlager PEQ Box IVSignal 503
Corio LAZ-44 V3MCRP-3003
FSS OLE-V LaserEBR-1410
Canted Vibro-Dot 7TAQ-5610
1MW Laser BoxM412
STOVL DR Laser BoxKastov 7629
Corvus PEQ Beam-5Lachmann-7628
FTAC Grimline LaserTAQ-V5
Luminate-44SAKIN MG388
DXS Flash 90RAAL MG4

Optic

AttachmentWeaponLevel
SZ MiniLachmann Sub11
Cronen Mini Red DotFSS Hurricane3
Cronen Mini ProExpedite 127
SZ Sigma-IVX124
SZ Minitac-40SO-145
XRK On-PointBryson 8905
DF105 Reflex SightKastov-74u10
Monocle CT90Minibak12
Corvus SOL-76VEL 465
SZ SRO-7M1611
SZ Lonewolf OpticM42
Kazan-HoloKastov 5457
Corvus Downrange-00MX98
SZ HolothermPDSW 52812
XTEN Angel-40TAQ-M11
VLK 4.0 OpticKastov 7624
Schlager 4XRAPP H12
Forge TAC Delta 4556 Icarus9
Cronen Zero-P OpticTAQ-564
SZ Bullseye OpticSO-1420
Schlager Night ViewSTB 5566
VX350 ThermalRPK7
Teplo-OP3 ScopeSA-B 509
DR582 Hybrid SightSAKIN MG385
Hybrid FirepointLachmann-76214
SZ Vortex-90VEL 4628
BPZ40 HybridTAQ-V8
Angel-40 4.8XRAAL MG6
Thermo-Optic X9Lachmann-55614
Teplo Clear ShotHCR 569
FTAC Charlie 7SO-1418
HM2-20Lachmann-7622
Luca Bandera ScopeLockwood MK27
DREXSOM Prime-90FTAC Recon 1212
Ares Clear ShotSO-1412

Related: How to unlock all Lachmann Sub Attachments in MW2

Stock

AttachmentWeaponLevel
Ravage-8FTAC Recon8
Demo Fade Pro StockM419
Tempus P80 Strike StockM411
Demo Precision Elite Factory556 Icarus8
Corio Precio FactoryM47
Demo D50 Buffer TubeM414

Rear Grip

AttachmentWeaponLevel
D15 GripM1615
SAKIN ZX GripM48
XTEN GripFSS Hurricane5
Phantom GripFSS Hurricane12
Support CP90 GripFTAC Recon15

Magazine

AttachmentWeaponLevel
45 Round MagM45
60 Round MagM417

Ammunition

AttachmentWeaponLevel
5.56 FrangiblePDSW 52821
5.56 Armor PiercingM49
5.56 Overpressured +PTAQ-562
5.56 High VelocitySTB 5567

Underbarrel

AttachmentWeaponLevel
Demo Firm GripLockwood MK29
XTEN GravediggerSignal 509
FTAC Ripper 56Lachmann-7626
Demo Cleanshot 40Lockwood 3008
Demo IMP-44 GripTAQ-566
FSS Sharkfin 90M46
Agent GripX13 Auto17
Bruen Sync Shot GripPDSW 52822
XTEN Drop GripSTB 5568
Phase-3 GripVaznev-9K9
Merc ForegripTAQ-V6
Lockgrip Precision-49Lachmann Sub9
Schlager TangoKastov 7627
VX Pineapple556 Icarus14
OP-X9 ForegripEBR-146
Operator ForegripVel 463
TV Wrecker GripHCR 5610
Bruen Tilt GripTAQ-5613
Cronen Grooveshot GripBryson 8007
Bruen Warrior GripSAKIN MG3812
Bipod V9 GripTAQ-V19
Level Aim BipodSP-R 2088
Cornerstone BipodMCRP-30019
XTEN Stable ShotVictus XMR6
Hellscream 40mmTAQ-5615
Corvus MasterkeyKastov 54518

For more attachment guides for powerful assault rifles, check out How to unlock all TAQ-56 Attachments in MW2 on Pro Game Guides.

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How to unlock all M4 Attachments in MW2

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