Best Modern Warfare 2 STB 556 loadout

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Modern Warfare 2 players holding
Credit: Activision
April 25, 2023: The best STB 556 is heavily underrated in MW2 multiplayer. Find the best attachments and more in our guide.

There's every chance the best Modern Warfare 2 STB 556 loadout features in the meta as one of the top assault rifles (AR) to use. The STB is one of many new arrivals to the Call of Duty franchise and while the name is unfamiliar, the rifle may share similar characteristics to guns from previous releases.

The STB heavily resembles the AUG assault rifle from 2019's Modern Warfare thanks to its compact design. Assuming the STB behaves similarly to the AUG, it will come with strong damage output and plenty of mobility.

Elsewhere, check out our other guides showcasing the best Modern Warfare 2 sniper rifle and the best Modern Warfare 2 perks to use as part of a loadout.

What is the best Modern Warfare 2 STB 556 loadout?

Attachment Name
BarrelFTAC FB20
OpticCronen Mini Pro
CombFTAC C11 Riser
Ammunition5.56 High Velocity
Rear GripBruen Q900 Grip

Although this build takes the edge of the STB 556's mobility, the additional damage and range provide drastic improvements to performance.

Thanks to the high-velocity rounds and the choice of barrel, it's much easier to excel in those competitive mid-range engagements.

Best Modern Warfare 2 STB 556 attachments

The Modern Warfare 2 gunsmith features a huge range of attachments capable of transforming any weapon to suit any style of play. After some testing, here's the strongest combination for the STB 556:

  • Barrel: FTAC FB20
  • Optic: Cronen Mini Pro
  • Comb: FTAC C11 Riser
  • Ammunition: 5.56 High Velocity
  • Rear Grip: Bruen Q900 Grip

Mobility levels are already high which is why this set of attachments focuses on bolstering damage output. The FTAC FB20 barrel improves damage, range, and recoil control alongside the high-velocity rounds that ensure minimal damage drop-off.

To compensate for the loss of aim-down sight speed, the FTAC C11 Riser comb provides a slight boost enabling you to react to a target in the blink of an eye. For a crystal-clear view of the action, the Cronen Mini Pro is the perfect optic for the job.

Overall, this set of attachments is great for the STB 556 and its ability to compete in mid-range and long-distance gunfights.

Modern Warfare 2 STB 556 in gunsmith
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Credit: Screengrab via Activision

How to unlock STB 556 in Modern Warfare 2

The STB 556 is part of the Bruen Bullpup weapon platform but there's no need to use another weapon in order to unlock this particular assault rifle. Simply reach level 41 by playing the game and you can use it as part of a loadout.

Best Modern Warfare 2 STB 556 perks and equipment

Although we can't determine the best attachments for the STB 556, we can find a perk package and equipment combination that suit all styles of play. Here's what we recommend using alongside the AR.


  • Battle Hardened (Base)
  • Bomb Squad (Base)
  • Fast Hands (Bonus)
  • Birds'-Eye (Ultimate)

Battle Hardened and EOD provide much-needed resistance to any incoming explosives and any flash or stun grenades that land nearby. Alongside the base perks, Fast Hands increases weapon swap speed which is handy if the STB 556 runs out of ammunition in the middle of a gunfight.

Last and by no means least, Birds'-Eye is our ultimate perk of choice. Once unlocked, the minimap pings and reveals the location of players for the remainder of the game. Use it to plan your movements based on where the enemy is on the map.


  • Semtex (Lethal)
  • Smoke grenade (Tactical)

Semtex is incredibly versatile. Use it to clear a hotly contested area of the map or stick it on a vehicle for an explosive elimination. With some maps featuring large, open areas, the smoke grenade is perfect for some improvised cover to escape any sticky situations.

Is the STB 556 good in Modern Warfare 2?

After spending some time mastering the STB 556, it's a hugely underrated assault rifle many players are sleeping on. The extra damage allows you to make an impact in the majority of scenarios but the real star of the show it its fast ADS speed.

That's all there is to know about the best Modern Warfare 2 STB 556 loadout. For more, take a look at the best Modern Warfare 2 guns along with the latest intel on Modern Warfare 2 double XP events.

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