- For similar attachments, see Drum Magazines.
The MacroMag IFS is an ammunition Signature Attachment for the ICR-1 in Call of Duty: Mobile. It was added in 2023 as part of the Season 7: Heat Wave update.
When equipped, the ICR will have a 10% range boost, as well as the bullet will have a boost in terms of bullet penetration. The gun will also have increased magazine size. However the attachment make the ICR's ADS time far worse, and make this weapon less mobile.
Overall this attachment is very useful as it maximizing ammo capacity, its range boost and the FMJ-type effect. However its major drawback, like the Drum Mags, is the expense of mobility. When using this attachment, the 4 other slots should focus on increasing mobility of the weapon to maximize its effectiveness.