This is the best class build for the M4, a type of Assault Rifle in Call of Duty: Modern Warfare 2 (MW2). Check here to learn how to play the best loadout for the M4, including the best attachments and recommended Perk Package.

M4 Overview and Stats

Weapon Overview

M4
Enlarge The flagship rifle of the M4 Platform. This reliable workhorse is a jack-of-all-trades that performs well in most combat scenarios.
Basic Info
Platform: M4 Weapon Class: Assault Rifle Max Level: 20			Magazine Capacity: 30 Reserve Ammo: 60 Fire Modes: Full-Auto/Semi-Auto
How to Unlock		Unlocked by default.

Weapon Stats

Damage
Fire Rate
Range
Accuracy
Recoil Control
Mobility
Handling

M4 Best Loadout and Attachments

Best M4 Class Build

Best M4 Attachment Loadout

Barrel	Tempus Trench Pro
Muzzle	SAKIN Tread-40
Laser	1MW Laser Box
Underbarrel	FSS Sharkfin 90
Rear Grip	Sakin ZX Grip

How to Play

This M4 loadout minimizes recoil and maximizes ADS speed without making any considerable reductions in damage output. The reload speed of the M4 will be made quicker through the Fast Hands bonus perk. Players can also go behind enemy lines faster through the Double Time perk coupled with the Dead Silence field upgrade.

To maximize the full potential of this loadout, it is recommended for players to use an aggressive, run-and-gun playstyle with the intention of pushing enemy spawns without being detected.

M4 Weapon Progression

Progression Tree: All Unlockables

Enlarge
All Unlockables
SZ Lonewolf Optic Optic (Level 2)	Echoline GS-X Muzzle (Level 3)	11.5” T-H4 Barrel Barrel (Level 4)
45 Round Mag Magazine (Level 5)	FSS Sharkfin 90 Underbarrel (Level 6)	Stock Category Unlock (Level 7)
Corio Precio Factory Stock (Level 7)	Rear Grip Category Unlock (Level 8)	Sakin ZX Grip Rear Grip (Level 8)
Ammunition Category Unlock (Level 9)	5.56 Armor Piercing Ammunition (Level 9)	Tempus Trench Pro Barrel (Level 10)
Tempus P80 Strike Stock Stock (Level 11)	Laser Category Unlock (Level 12)	1MW Laser Box Laser (Level 12)
FTAC Recon Receiver (Level 13)	Demo D50 Buffer Tube Stock (Level 14)	Hightower 20” Barrel Barrel (Level 15)
XTEN Grip Rear Grip (Level 16)	556 Icarus Receiver (Level 18)	Demo Fade Pro Stock Stock (Level 19)
Weapon Tuning Feature Unlock (Level 20)

NOTE: Newly acquired weapons will have locked attachment slots at Level 1. Category Unlocks are upgrades that unlock these attachment slots for use.

Guns Unlocked by Leveling the M4

All Gun Unlocks
556 Icarus Unlocked by leveling the M4 to Level 18.	FTAC Recon Unlocked by leveling the M4 to Level 13.

All Compatible M4 Attachments

M4 Barrels

M4 Magazines

M4 Stocks

M4 Rear Grips

M4 Muzzles

M4 Underbarrels

M4 Ammunition

M4 Lasers

M4 Optics

M4 Camos & Blueprints

All M4 Camos

Camo	Challenge	Lv. Unlock
Enlarge Scales	Get 50 kills with the M4	2
Enlarge Desert Hybrid	Get 50 kills while ADS with the M4	8
Enlarge Dark Leaves	Get 10 double kills with the M4	13
Enlarge Urban Renewal	Get 15 kills from behind with the M4	19
Enlarge Gold M4	Get 3 kills without dying 10 times with the M4	N/A

All M4 Blueprints

Blueprint	How to Get
Enlarge Union Guard	Completing the Campaign
Enlarge Dragonfly	Pre-order the Playstation-exclusive Oni Operator Bundle
Enlarge Secret Weapon	Purchase the Overgrown Bundle
Enlarge Mortal's Bane	Unlock the Victory Sector of the Season 1 Battle Pass
Enlarge Short Fuse	Purchase the Executive Warfighter Bundle
Enlarge Flatline	Purchase the Infinite Warfighters: ETH.3N Bundle
Enlarge Pulling G's	Purchase the After Burner Bundle to Unlock

Call of Duty: Modern Warfare 2 (MW2) Related Guides

List of All Weapons

Weapons by Type

Tier Lists & Best Weapons

Best Weapons
Best Guns for Multiplayer	Best Guns for Campaign
Best Sniper Rifle	Best Assault Rifle
Best Quickscope Class	Best Submachine Gun
Best Marksman Rifle	Best Assault Class
Best Shotgun	-

All Assault Rifle Weapons

List of All Assault Rifle Weapons
Lachmann-556	M4	M16
Kastov-74u	TAQ-56	Kastov 762
Kastov 545	STB 556	Chimera
M13B