Similar to removePrimaryWeaponItem or removeHandgunWeaponItem, this command would allow you to remove an item from a weapon, but instead of the weapon having to be specified as part of the command, you would be able to specify weapon and muzzle similar to the syntax of addWeaponItem.

Primary syntax:

unit removeWeaponItem [weaponName, itemName, instant];

Alt syntax:

unit removeWeaponItem [weaponName, [itemName, muzzleName], instant];