Call of Duty: Modern Warfare 4 features Apex Attachments that significantly change how weapons perform. Some offer simple or even minor improvements, while others act as complete conversion kits that sway a gun's strengths and weaknesses into different directions. As of writing, there are 33 Apex Attachments in Modern Warfare 4, and if you're curious as to what each of them can do, here's a list that briefly touches upon all of them.
Call of Duty: Modern Warfare 4 features 33 total weapons at launch. Here is how you can unlock every weapon in Modern Warfare 4.
Updated November 11, 2026 by Marc Santos: More Apex Attachments were added to COD MW4 with the release of Season 1; one for each new weapon, and additional attachments for the Kastov 762 and Hyeon Burst rifles. We've updated this guide to include these new Apex Attachments by adding new season-specific segments under their respective categories.
Barrel attachment with integrated optics that can fire EMP shots that incapacitate infantry, disrupt vehicles, and disable electronics.
Converts the pistol grip for a chainsaw rear grip and outfits the weapon with attachments built for extremely effective canted aiming and hipfire.
Changes the firing mode to full-auto; the first three rounds of a burst are fired extremely quickly, but the fire rate for subsequent shots slows down dramatically.
An advanced version of the Han 86 that's equipped with advanced optics and an airburst grenade launcher.
Underbarrel attachment that fires incapacitating taser darts. Non-lethal, but powerful enough to significantly hamper enemy mobility.
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