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The MCW assault rifle in MW3.
Screenshot by Dot Esports

The best MCW loadout and class setup in MW3

MCW, ACR, who cares? It dominates.

In Call of Duty: Modern Warfare 3, the popular assault rifle known as the ACR is back, now called the MCW. It’s easily one of the best guns in the game, and we have the best MCW loadout and class setup for you to use.

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With the Gunsmith, the MCW can be customized into even more of a powerhouse. This is what we and many pro players think is the best MCW class setup and loadout in MW3.

How good is the MCW in MW3?

The name change for the MCW has done little to take away from its dominance in multiplayer. It’s powerful, incredibly accurate, and mobile enough to keep AR players moving quickly to their anchor positions. This works well in modes like Hardpoint or Domination, or even in MWZ missions like Storm the Castle.

MW3’s nostalgia is on full display around every turn, and the MCW (ACR) is just a part of that.

MCW stats in MW3

DamageHeadshot Damage: 44
Upper Torso Damage: 37
Lower Torso Damage: 34
Rate opf Fire: 714.3 rpm
RangeEffective Damage Range: 26.7 m
Minimum Damage Range: 45.2 m
Bullet Velocity: 710 m/s
MobilityMovement Speed: 4.9 m/s
Sprint Speed: 5.5 m/s
Tactical Sprint Speed: Seven m/s
ADS Movement Speed: 2.9 m/s
HandlingADS speed: 240 ms
Reload Quickness: 2.8 s
Sprint To Fire Speed: 220 ms
Swap Speed: 1,500 ms
Stats from WZstats.gg

Best MCW loadout and class setup in MW3

A screenshot of the best MCW loadout in MW3 multiplayer.
The meta. Screenshot by Dot Esports

The MCW is the odds-on favorite for the best assault rifle in MW3, and that should come as a surprise to no one. As it’s heavily inspired by the ACR of CoD’s past, this gun is reliable, powerful, and dominates in the right hands.

When it comes to CoD, the “right hands” don’t get much better than Call of Duty League pros. The MCW has become the go-to choice for pro matches in the CDL, giving this AR the ultimate seal of approval for stomping multiplayer matches.

If we’re talking about the best MCW class overall, this is the top choice for assault rifle players in Ranked Play, too. Here’s the best MCW class setup in MW3.

Best MCW build in MW3

  • Muzzle: T51R Billeted Brake
  • Barrel: 16.5″ MCW Cyclone Long Barrel
  • Optic: Slate Reflector or MK. 23 Reflector
  • Stock: RB Regal Heavy Stock
  • Rear Grip: RB Claw-PSL Grip

Here’s what we think is the best MCW build in MW3. The above set of attachments is perfect for increasing the MCW’s damage, range, recoil control, mobility, and handling, all while only sacrificing a tiny bit of accuracy. But if you land your shots, that won’t be a problem. The 16.5″ MCW Cyclone Long Barrel is one of the best attachments for the weapon since it adds bullet velocity and range, aiming idle away, and firing aim stability.

The only sacrifices made with this loadout are Tac Stance spread, hipfire spread, and a little bit of aim walking speed, so the trade-off is absolutely worth it when it comes to being a strong AR player in MW3.

Tip:

I personally also have a duplicate of this loadout in a second class that uses the HMRES Mod Suppressor in the Muzzle slot. Choosing between a muzzle and a suppressor all depends on the game mode. Now that you appear as a red dot on enemy minimaps when you fire an unsuppressed weapon, stealth is sometimes the better approach, especially if you’re trying to rack up a nice kill streak.

For the optic slot, it may come down to personal preference. I like the MK. 23 Reflector for dealing with close-range engagements, but the favorite thus far for most players is the Slate Reflector, which makes its way into the modern era from Sledgehammer’s previous title, Call of Duty: Vanguard.

Best JAK Raven MCW SMG build in MW3

  • Aftermarket Parts: JAK Raven Kit
  • Muzzle: ZEHMN35 Compensated Flash Hider
  • Barrel: Kimura Blackiron Heavy Short Barrel
  • Underbarrel: DR-6 Handstop
  • Magazine: 40 Round Mag

The JAK Raven Conversion Kit turns the MCW into an SMG. This is a decent, fast, close-range weapon in MW3 multiplayer, although it’s better suited as a CQC gun in Warzone.

Best MCW class setup in MW3

  • Vest: Infantry Vest
  • Handgun: Renetti
  • Tactical: Stun Grenade
  • Lethal: Semtex
  • Field Equipment: Trophy System
  • Gloves: Quick-Grip Gloves
  • Boots: Stalker Boots
  • Gear: Tac Mask or EOD Padding

This setup is excellent for any kind of playstyle in MW3, even ranked play when it becomes available. It’s a real solid class that can cover you in no matter what situation you find yourself in. I think it’s the best MCW class overall in MW3.

The Renetti is the best pistol, while Stun Grenades will keep your foes off-kilter for a few seconds to finish off an easy kill, and the Semtex is great for clearing out objectives. Always make sure to throw down a Trophy System on an objective to protect yourself and your SMG-running teammates.


Update on May 8, 2024, by Scott Duwe: We’ve updated this article for timeliness in MW3 for Ranked Play, along with more of an explanation as to why the MCW is a top AR in the game, and added the JAK Raven Kit loadout as well.


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Author
Image of Scott Duwe
Scott Duwe
Senior Staff Writer
Senior Staff Writer & Call of Duty lead. Professional writer for over 10 years. Lover of all things Marvel, Destiny 2, Metal Gear, Final Fantasy, Resident Evil, and more. Previous bylines include PC Gamer, Red Bull Esports, Fanbyte, and Esports Nation. DogDad to corgis Yogi and Mickey, sports fan (NY Yankees, NY Jets, NY Rangers, NY Knicks), Paramore fanatic, cardio enthusiast.