Modern Warfare 3 is now the main focal point for Call of Duty fans for the next while, and with the game being released now, players are amped to dive into this years content.
All eyes are on the game at the moment, as they’ve gone ahead and revealed all the Season 1 content for players, and some brand new aftermarket parts will be arriving this season for players to use.
Here’s all of them coming in Modern Warfare 3!
All New Aftermarket Parts Coming To Modern Warfare 3 Season 1
With Modern Warfare 3 fully released, players are getting situated with all the weapons, maps and more, and this is all about to change with the arrival of Season 1 content.
Now, a new wave of content is coming to Modern Warfare 3, including these aftermarket parts, which have been a nice addition in this years COD.
Check them all out below.
Season 1 brings new Aftermarket Parts, including the JAK Purifier, a new flamethrower underbarrel attachment for multiple weapons, available via the Season 1 Battle Pass. Note that Aftermarket Parts usually attach to a specific weapon or class of weapon, as detailed below:

JAK Purifier
Compatability: MCW, MTZ-556, Holger 556, DG-56, SVA 545, RAM-7, MTZ-762, BAS-B, Sidewinder, Riveter
Equip an underbarrel flamethrower. What more needs to be said? Burn it all down. The JAK Purifier AMP is compatible with several weapons, including multiple Assault Rifles, Battle Rifles, and the Riveter Shotgun.
JAK Ettin Double Barrel Kit
Compatability: AMR9
Available for the AMR9 SMG, this kit creates two stacked barrels that fire simultaneously. This offers twice as much down-range damage at the cost of some accuracy.
JAK Thunder LMG Kit
Compatability: Sidewinder (BR)
Dominate lanes and hold objectives with this LMG conversion kit for the Sidewinder Battle Rifle that brings a large capacity magazine and ramps in fire rate the longer you hold down the trigger.
JAK BRB
Compatability: Many Assault Rifles, Submachine Guns, Battle Rifles, Marksman Rifles, and Sniper Rifles.
Go loud. This compensator borders on excessive, offering a phenomenal reduction to recoil while significantly increasing muzzle report, resulting in an extended red dot on enemy radars.
JAK Bullseye
Compatability: [[REDACTED]]
Very low-profile dot Optic. Limited interference from framework offers an exceptionally clear sight picture.
JAK Glassless Optic
Compatability: [[REDACTED]]
This small, glassless reflex Optic offers a crisp and clear sight picture for snappy target acquisition.
JAK Signal Burst
Compatability: Holger 556 (AR)
A conversion kit designed for accuracy and controllability with four-round bursts.
JAK Beholder Rifle Kit
Compatability: TYR (Handgun)
A long and heavy barrel that offers the best increase to range. Improves recoil control and damage range, converting this Handgun into a single-shot Rifle.
JAK Headhunter Carbine Conversion
Compatability: Rival-9 (SMG)
Rival Assault Rifles with this three-round burst conversion kit that excels at midrange combat.