Modern Warfare 2: Best Assault Rifle & Loadouts [Season 2]

Learn about the overall ranking of Modern Warfare 2 Best Assault Rifles.

Assault Rifles are fast, versatile, and can be used in all sorts of combat range engagements while playing COD MW2. Having the knowledge of the best weapons, and how to unlock guns and attachments gives you an edge while playing multiplayer mode. However, if you’re an AR FPS player, then you should know about the best Modern Warfare 2 Assault Rifles in the current meta. 

We have listed all ARs available so far in MW2 and ranked each one of them based on how good these are in the game. We have also listed loadouts that potentially iron out a few kinks attached to these guns. 

Key Takeaways
  • Assault Rifles are very versatile, fast, and can be used in all kinds of engagements.

  • First Assault Rifle is the Kastov 762.
  • Its attachments are Katovia DX90, KAS-7 406MM Barrel, FSS SharkFin 90, 40-Round Mag, and Ivanov ST-70 Grip.
  • The secondary Weapon is P890. For Lethal Equipment, use Semtex, and for Tactical use Stun Grenade. 
  • For perks, use Bomb Squad, Battle-Hardened, Fast Hands, and Ghost. Use Trophy System as Field System.

  • The second Assault Rifle is STB 556.
  • Its attachments are FTAC FB20 Barrel, Cronen Mini Pro, FTAC C11 Riser Comb, 5.56 High-Velocity Ammo, and Bruen Q900 Grip.
  • X13 Auto as Secondary Weapon. Use Semtex and Smoke Grenade as Equipment.
  • For perks use Battle-Hardened, Bomb Squad, Fast Hands, and Birds Eye. Field Upgrade is Ammo Crate.

  • The Third Weapon is M4. 
  • Attachments are Forge-Tac Castle Comp, Hightower 20” Barrel, Corio Precio Factory, Phantom Grip, and Cronen Mini Red Dot.
  • Perks for this gun are Overkill, Scavenger, Fast Hands, and Quick Fix. Use Expedite 12 as your Secondary Weapon.
  • Use Stun Grenade as Tactical and Proximity Mine as Lethal Equipment. Dead Silence as Field Upgrade.

  • The Fourth Weapon is Lachmann 556.
  • Echoline GS-X Suppressor, Lach-12 Barrel, FSS Sharkfin 90, 40-Round Mag, and Cronen Mini Red Dot are attachments.
  • Lachmann Sub is recommended to be used as Secondary Weapon. Use Dead Silence as Field Upgrade.
  • Perks to be used are Overkill, Scavenger, Quick Fix, and Ghost. For Equipment, use Flash Grenade and Semtex.

  • The Fifth Weapon is M16. Its Attachments are:
  • Vx Pineapple Vert Grip, Sakin ZX Grip, Demo Fade Pro Stock, Cronen Mini Red Dot, and Forge Tac Castle Comp.
  • Bomb Squad, Double Time, Fast Hands, and Quick Fix perks are used. Field Upgrade is Dead Silence.
  • As for the Secondary Weapon, use X13 Auto. For Tactical, use Stun Grenade and for Lethal Equipment use Semtex.

  • The Sixth Weapon is Kastov-74U. The Attachments for this weapon are:
  • RF Crown 50, BR209 Barrel, Merc Foregrip Underbarrel, Markeev R7 Stock, and True-Tac Grip.
  • As for perks, use Battle-Hardened, Double Time, Focus, and Quick Fix.
  • For Lethal, Use Semtex. For Tactical, Use Flash or Stun Grenade. Use Dead Silence.

  • The Seventh Gun is TAQ-56. Use the following Attachments.
  • Echoless-80 Muzzle, FSS Combat Grip, Demo IMP-44 Grip, 14.5” Tundra Pro Barrel, and TV Cardinal Stock.
  • Use X12 Pistol as Secondary Weapon. Tactical and Lethal Equipments are Drill Charge and Stun Grenade.
  • As for perks, use Bomb Squad, Battle Hardened, Fast Hands, and Bird’s Eye. Field Upgrade is Portable Radar.

  • Kastov 545 is the Eight Weapon. The attachments for this gun are:
  • BR209 Barrel, Ivanov ST-70 Grip, FSS OLE-V Laser, KSTV-RPK Factory Stock, and FSS Covert V Muzzle
  • Perks used are Battle Hardened, Scavenger, Fast Hands, and Quick Fix
  • Munitions Box as Field Upgrade. Use Semtex and Flash Grenade as Equipment.

Kastov 762

Kastov 762 MW2
Kastov 762 MW2 [Image Credit: eXputer]
The assault rifle known as the Kostov 762 is a vital component of the AK platform. It has a large caliber chamber that can hold bullets with a 7.62 x 39mm diameter, and it can deliver powerful shots in the hands of skilled players. On the other hand, both the precision and the recoil control of this weapon are below average.

You have the ability to choose between two different firing modes: full-auto and semi-auto. On the other hand, and this should come as no surprise, you will be employing the latter for brief bursts in order to guarantee precision in MW2.

Even while the Kastov 762 is clearly one of the strongest Modern Warfare 2 weapons, it does not perform very well until the proper configuration has been applied to it. This implies that it should be paired with the appropriate attachments, Perks, and other benefits.

In Call of Duty: Modern Warfare 2, the Kastov 762 is one of the several assault weapons that players have the opportunity to obtain. It is a modification of the well-known AK-47 that is capable of inflicting a significant amount of damage but comes with a significant amount of recoil.

It is hard to resist mentioning the Kastov 762 when a discussion about the finest assault rifles is taking place. This is one that is sure to stick out above the others in the metagame because of its powerful kick and weighty feel overall.

It is imperative that you get the KAS-7 406MM barrel attachment as soon as possible with enhancements to both the shooter’s ability to regulate their hip recoil and their bullet velocity. It is mostly required for controlling recoil and increasing bullet velocity, which in turn gives your projectiles more accuracy and speed.

Weapon Stats

  • Fire Rate: 600 RPM
  • ADS Time: 270 ms
  • Muzzle Velocity: 590 m/s
  • Ammo Count: 30
  • Sprint To Fire Time: 210ms

Best Kastov 762 Loadout

  • Muzzle: Katovia DX90
  • Barrel: KAS-7 406MM
  • Underbarrel: FSSSharkfin 90
  • Magazine: 40-Round Mag
  • Rear Grip: Ivanov ST-70 Grip
  • Secondary Weapon: P890
  • Lethal: Semtex
  • Tactical: Stun Grenade
  • Perk 1: Bomb Squad
  • Perk 2: Battle Hardened
  • Bonus Perk: Fast hand
  • Ultimate perk: Ghost
  • Field Upgrade: Trophy System

STB 556

STB 556 MW2
STB 556 mw2 [Image Credit: eXputer]
In Call of Duty: Modern Warfare 2, players who want to offer covering fire while maintaining their accuracy have a viable alternative in the form of the STB 556 assault rifle. The STB 556 differs from other assault rifles in that it can be fitted with a large number of different attachments. You have a lot of leeways to personalize it in accordance with your own tastes.

In Modern Warfare 2, the STB 556 is a kind of Assault Rifle that, in order to make the most of its potential and mitigate its recoil, is most effective when used in conjunction with a certain set of attachments. The weapon has limited range and stability, which may be enhanced to the extent that its TTK is significantly lowered. 

The STB 556 is an AR designed for combat at medium and long ranges. It has a high accuracy, allowing it to be utilized for firing at targets that are quite close up. With this STB 556 build, you have access to high-velocity rounds and great mobility, allowing you to be competitive in any engagement taking place at a mid-range.

In earlier entries in the COD series, the STB 556 was referred to as the AUG A3, and it was designed to perform very well in mid to long-range engagements. Rather than having to level up a weapon in order to acquire the STB 556 assault rifle in Call of Duty: Modern Warfare 2, all you have to do is rank up until you reach level 41, and it will be available to you. This unlock is quite simple than most ARs in the game.

Weapon Stats

  • Fire Rate: 741 RPM
  • ADS Time: 240 ms
  • Muzzle Velocity: 590 m/s
  • Ammo Count: 30
  • Sprint To Fire Time: 82 ms

Best STB 556 Loadout

  • Barrel: FTAC FB20
  • Optic: Cronen Mini Pro
  • Comb: FTAC C11 Riser
  • Ammo: 5.56 High Velocity
  • Rear Grip: Bruen Q900 Grip
  • Secondary: X13
  • Tactical: Smoke Grenade
  • Lethal: Semtex
  • Field Upgrade: Ammo Crate
  • Base Perk 1: Battle Hardened
  • Base Perk 2: Bomb Squad
  • Bonus Perk: Fast Hands
  • Ultimate Perk: Birds Eye


M4 MW 2 Loadout
Best M4 Loadout in Call of Duty Modern Warfare II (image credit: eXputer)

There is a great deal of room for customization on the M4, particularly in regard to the variety of attachments that it is able to make use of in Modern Warfare 2. The M4 will constantly have your back, whether you need it for long-range elimination of an opponent or for close-quarters combat scenarios.

If you buy the Vault Edition of COD MW2, you will get instant access to the whole set of M4 Platform attachments. Also, you won’t be able to access custom loadouts for your weapons until you reach level 4, which is the minimum requirement. You are able to personalize every facet of the weapon via the use of custom loadouts.

In Modern Warfare 2, the M4 serves as the first AR. It is important to note that increasing its level will allow you to obtain more Assault Rifles as you advance throughout the game, such as the M16. This will be accomplished by increasing its overall level. 

Because of this, the AR is basically one of the best weapons in Modern Warfare 2 and can be used effectively in virtually every position that the player may find himself in. After a lot of trial and error with the many attachments and perks that come with the rifle, we believe that we have finally come up with the optimal loadout for the M4 in Modern Warfare 2.

Weapon Stats

  • Fire Rate: 811 RPM
  • ADS Time: 240 ms
  • Muzzle Velocity: 590 m/s
  • Ammo Count: 30
  • Sprint To Fire Time: 210 ms 

Best M4 Loadout

  • Muzzle: Forge-Tac Castle Comp 
  • Barrel: Hightower 20″ Barrel 
  • Stock: Corio Precio Factory 
  • Rear Grip: Phantom Grip 
  • Optic: Cronen Mini Red Dot 
  • Basic Perk 1: Overkill or Bomb Squad
  • Basic Perk 2: Scavenger or Double Time
  • Bonus Perk: Fast Hands
  • Ultimate Perk: Quick Fix or Ghost
  • Secondary Weapon: Expedite 12
  • Tactical Equipment: Stun Grenade
  • Lethal Equipment: Proximity Mine or Semtex
  • Field Upgrade: Munitions Box or Dead Silence

Lachmann 556

Lachmann 556 MW2
LACHMANN 556 [Image Credit: eXputer]
Because of its wide variety of attachments, the Lachmann 556 is an excellent main weapon for both long and short ranges combat. The gun, in general, is straightforward to use, whether for seasoned gamers with years of experience or for newcomers to MW2 as well.

Now, the player who is holding the gun is the most important factor in determining how well it can be used. The Lachmann 556 class configuration, on the other hand, is very flexible and adaptable, making it suitable for any play style. Because of its high rate of fire and relatively low total damage per shot, it is most useful at medium to long ranges.

Because of the relatively low recoil, you’ll be able to steadily and consistently follow and attack your foes from a great distance. Recoil is controlled, and the quick mobility that can be achieved with this choice makes it a very important weapon to have in your inventory.

The length of time required to refill the magazine and the total number of rounds it can hold is the gun’s two primary limitations. You have the option of adding the Fast Hands perk, which will make it possible for you to speed up the reloading process drastically. When it comes to the capacity of the magazine, you have the option of increasing it to hold either 40 or even 60 rounds.

Simply reaching level 13 with the Lachmann 762 is all that is required to open up access to the Lachmann 556. The Lachmann 762 is another excellent choice for a beginning weapon, and it is quite simple to advance its level.

The Lachmann 556 has a vibe that is reminiscent of the Grau from MW 2019, and it also gives off a similar impression. The AR has a nice handling impression, and you can maintain a high degree of mobility while using it to rush your opponents.

Weapon Stats

  • Fire Rate: 723 RPM
  • ADS Time: 240 ms
  • Muzzle Velocity: 590 m/s
  • Ammo Count: 30 
  • Sprint To Fire Time: 210 ms

Best Lachmann 556 Loadout

  • Muzzle: Echo line GS-X Suppressor 
  • Barrel: Lach – 12
  • Underbarrel: FSS Sharkfin 90
  • Magazine: 40-Round Mag
  • Optic: Cronen Mini Red Dot
  • Secondary Weapon: Lachmann sub
  • Perk 1: Overkill 
  • Perk 2: Scavenger
  • Bonus Perk: Quick Fix
  • Ultimate Perk: Ghost
  • Equipment: Flash Grenade and Semtex
  • Field Upgrade: Dead Silence


Best M16 Loadouts in COD Modern Warfare 2
M16 Assault Rifle [Image Credit: eXputer]
In Call of Duty: MW2, the M16 is an excellent choice for a weapon to use if you are skilled at shooting head or body shots. In the event that you desire to hone your targeting skills, you may utilize the weapon for that purpose as well. Bear in mind, though, that there will be a little pause in between each burst of activity on your part.

The M16 is one of the best Assault Rifles in Call of Duty MW2 under the burst weapon category, and it plays quite similarly to the other iterations of the M16 that have been included in past Call of Duty games. You will have access to a three-round burst assault while using the M16.

Therefore, if you want great accuracy, you will need to utilize the M16 at medium to long ranges. This is the only way to do this. It is imperative that you refrain from utilizing the M16 while you are in a confined space. If it does not happen, all you will be doing is firing rounds into the air.

You may also use the VX Pineapple Vert Grip for this setup if you want some flexibility over the weapon recoil. It is compatible with the VX Pineapple Vert Grip. Additionally, the grip will assist you in improving the hipfire accuracy of the M16, which will allow you to make more accurate shots overall.

In Modern Warfare 2, you have to work your way up through the tiers of the Weapon Platforms in order to unlock the M16. In order to get access to the M16 weapon in Call of Duty MW2, you will first have to raise the level of the 556 Icarus LMG. You will then be able to obtain the M16 assault rifle if you level it up to Level 14.

It is imperative that you have the ideal loadout for your M16 if you plan on using it as your primary weapon for more than one match. This includes having the appropriate ammunition and magazines.

Weapon Stats

  • Fire Rate: 811 RPM
  • ADS Time: 290 ms
  • Muzzle Velocity: 590 m/s
  • Ammo Count: 30
  • Sprint To Fire Time: 210 ms

Best M16 Loadout

  • Underbarrel: The Vx Pineapple Vert Grip. 
  • Rear Grip: The Sakin ZX Grip 
  • Stock: The Demo Fade Pro Stock 
  • Optic: Cronen Mini Red Dot 
  • Muzzle: Forge Tac Castle Comp 
  • Perk 1: Bomb Squad 
  •  Perk 2: Double Time 
  •  Ultimate Perk: Fast Hands 
  •  Bonus Perk: Quick Fix 
  •  Field Upgrade: Dead Silence. 
  •  Tactical Equipment: Stun Grenade 
  •  Lethal Equipment: Semtex 


Kastov-74U MW2
KASTOV-74U [Image Credit: eXputer]
The Kastov-74U is one of the most powerful weapons in the game, albeit having its own set of advantages and disadvantages. There are no drawbacks to the AR that, with the addition of the appropriate attachments and perks, cannot be countered. It is a simple firearm that can inflict significant damage when used up close, yet it may also be used well at longer ranges.

The Kastov-74U’s range is the only potential drawback we have while thinking about this weapon. However, despite the fact that it is still fairly excellent at long range, it is not the strongest. Due to variables like its range and firing rate, it is difficult to employ effectively at long ranges in combat situations. You may still take advantage of it, but you’ll need to have excellent skills in FPS combat to land more kills.

Having said that, it is very possibly the most effective close-range weapon currently available in the game. There is no other submachine gun or assault rifle that even comes close to competing with the Kastov-74U; at least, that is what most writers at eXputer think.

Because of its low recoil and good accuracy, it is very effective to use in combat, and you will have the upper hand in any close to mid-range encounters. You are likely to enjoy one of the greatest mobility ratings in the game, which means that you will be able to run and slide through the map & eliminate any other player that stands in your way.

When you first start the game, the Kastov-74U won’t be available to you. Unlocking the weapon will take a bit of time. Because of the new unlocking system that has been included in MW2, in order to get the Kastov-74U, you will first need to unlock and upgrade two other firearms.

To begin, you will need to get the Kastov 762 unlocked. You will have no trouble unlocking the Kastov; all that is required of you is to go through the game and achieve level 23. When you have obtained the Kastov 762, all that is left to do is equip it and use it in combat against other players. After you have brought it to Level 10, you will be able to unlock the Kastov 545.

With the Kastov 545, you will be required to follow the same procedure. The only way to raise it up to level 13 is to use it in actual matches and get experience points that way. After you have accomplished that, the Kastov-74U will become available to you.

Weapon Stats

  • Fire Rate: 652 RPM
  • ADS Time: 210 ms
  • Muzzle Velocity: 590 m/s
  • Ammo Count: 30
  • Sprint To Fire Time: 210ms 

Best Kastov-74U Loadout

  • Muzzle: RF Crown 50
  • Barrel: BR209 Barrel
  • Underbarrel: Merc Foregrip
  • Stock: Markeev R7 Stock
  • Grip: True-Tac Grip
  • Perk 1: Battle Harden
  • Perk 2: Double Time
  • Bonus Perk: Focus
  • Ultimate Perk: Quick Fix
  • Equipment: Flash Or Stun
  • Lethal: Semtex
  • Field Upgrade: Dead Silence


TAQ-56 MW2 Loadout
TAQ-56 [Image Credit: eXputer]
When contrasted against either the Kastov or the M4, the TAQ-56 is a powerful weapon that also has certain advantages. The AR may be carried together with any of the other two weapons with ease. The TAQ-56 as a whole is well-rounded, and selecting an AR out of the several options available ultimately boils down to a matter of personal opinion. 

The TAQ-56, in comparison to the Kastov 762, is, according to the widespread opinion of professional Call of Duty broadcasters on Twitch and YouTube, the lesser weapon. However, despite its flaws, it is still a dependable and powerful rifle that has a respectable time to kill and strong handling metrics. This indicates that it is definitely worth your time to experiment with various loadouts in order to determine whether or not you can develop a desirable loadout.

The damage-to-recoil ratio is the primary topic of discussion here. While the Kastov can do a lot of damage, it is difficult to control from a distance. In contrast, the M4 has a high level of precision and excellent control over its recoil.

Since of the variety of attachments that are detailed below, this TAQ-56 loadout is the most effective one that we’ve seen so far because it achieves an excellent balance between minimal recoil and strong stopping power. 

Weapon Stats

  • Fire Rate: 625 RPM
  • ADS Time: 240 ms
  • Muzzle Velocity: 590 m/s
  • Ammo Count: 30
  • Sprint To Fire Time: 210 ms

Best TAQ-56 Loadout

  • Muzzle: Echoless-80
  • Rear Grip: FSS Combat Grip
  • Underbarrel: Demo IMP-44 Grip
  • Barrel: 14.5″ Tundra Pro Barrel
  • Stock: TV Cardinal
  • Secondary: X12
  • Tactical: Stun Grenade
  • Lethal: Drill Charge
  • Field Upgrade: Portable Radar
  • Base Perk 1: Bomb Squad
  • Base Perk 2: Battle Hardened
  • Bonus Perk: Fast Hands
  • Ultimate Perk: Bird’s Eye

Kastov 545

MW 2 Kastov 545 AR Loadout
Kastov 545 mw2 [Image Credit: eXputer]
Players are able to exercise greater levels of command because to the smaller 5.45mm bullets that are fired by the Kastov 545. When shooting the weapon for an extended amount of time, you will find that this is a superb AR. The Kastov 545 and the Kastov-74U are extremely comparable to one another. The most important distinction is that it does somewhat less damage but has a longer range and less recoil than its predecessor.

If you want to keep your foes at bay at a safe distance, the Kastov 545 Assault Rifle is an excellent choice. It offers a high rate of fire and excellent accuracy. In addition to that, it has a rapid firing rate, which enables it to wipe out foes in a very short amount of time. The weapon is designed to be very effective at medium to close ranges of combat.

In order to get access to this weapon, you will need need to raise the level of your Kastov 762 to level 13. In Call of Duty: Modern Warfare 2, you won’t be able to get your hands on the Kastov 545 until that point.

The Kastov 545 also has a rapid rate of fire, which is perfect for making the most of the little amount of time it takes to kill an opponent. Despite the fact that this weapon is not presently a dominant AR in the metagame, it is still a fantastic rifle that allows you to construct the optimal loadout to shred your opponents.

Weapon Stats

  • Fire Rate: 652 RPM
  • ADS Time: 260 ms
  • Muzzle Velocity: 590 m/s
  • Ammo Count: 30
  • Sprint To Fire Time: 210 ms

Best Kastov 545 Loadout

  • Barrel: BR209 Barrel
  • Rear Grip: Ivanov ST-70 Grip
  • Laser: FSS OLE-V Laser
  • Stock: KSTV-RPK Factory
  • Muzzle: FSS Covert V
  • Tactical: Flash Grenade
  • Lethal: Semtex
  • Perk 1: Battle Hardened 
  • Perk 2: Scavenger
  • Bonus Perk: Fast Hands
  • Ultimate Perk: Quick Fix
  • Field Upgrade: Munitions Box


That is pretty much everything we had to entail about COD MW2 best ARs. If you do not like to run and gun with the best assault rifles in COD Modern Warfare 2, then you can always look for the best SMGs, Shotguns, or even snipers. Let us know more of your thoughts in the comments box below.

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Irfan Ansari

With four years of Video Game Journalism and Tremendous love for Gaming, Irfan loves chatting and writing everything about video games.

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