Assault Rifles | Sniper Rifles | Submachine Guns | Light Machine Guns
Shotguns | Machine Pistols | Handguns

Call of Duty: Modern Warfare 3 has several attachments you can earn while leveling up your weapons. Attachments are awarded as your weapon (not you) level up. The exception is launchers, which have no attachments.

Attachments can be used along with weapon proficiences to make you and your chosen weapon a more deadly combination.

These are COD: MW3′s weapon attachments for assault rifles:

  • Red Dot Sight
  • Silencer/Suppressor
  • Grenade Launcher
  • ACOG Scope
  • Rapid Fire (2 ARs only)
  • Heartbeat Sensor
  • Hybrid Sight
  • Shotgun
  • Holographic Sight
  • Extended Mags
  • Thermal Scope

MW3′s weapon attachments for sniper rifles:

  • ACOG Scope
  • Silencer/Suppressor
  • Thermal Scope
  • Extended Mags
  • Heartbeat Sensor
  • Variable Zoom Scope

MW3 weapon attachments for SMGs:

  • Red Dot Sight
  • Silencer/Suppressor
  • Rapid Fire
  • ACOG Scope
  • HAMR Scope
  • Holographic Sight
  • Extended Mags
  • Thermal Scope

MW3 weapon attachments for Light Machine Guns (LMGs):

  • Red Dot Sight
  • Silencer/Suppressor
  • Grip
  • ACOG Scope
  • Rapid Fire
  • Heartbeat Sensor
  • Holographic Sight
  • Extended Mags
  • Thermal Scope

COD: MW3′s weapon attachments for Shotguns:

  • Grip
  • Silencer/Suppressor
  • Red Dot Sight
  • Extended Mags
  • Holographic Sight

Weapon attachments for Machine Pistols:

  • Silencer/Suppressor
  • Akimbo
  • Red Dot Sight
  • Holographic Sight
  • Extended Mags

Weapon attachments for MW3 Handguns:

  • Silencer/Suppressor
  • Akimbo
  • Tactical Knife
  • Extended Mags