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How to Get All Aftermarket Parts in Modern Warfare 3

COD Modern Warfare 3 added a new and game-changing feature to the franchise’s already acclaimed Gunsmith system by allowing players to unlock Aftermarket Parts.

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It is a series of Conversion Kits that can be equipped to certain guns to either enhance their strengths or in some cases transform them into completely different beasts. But how can you unlock each of the Aftermarket Parts featured in MW3? Here’s how to get all Aftermarket Parks in Call of Duty: Modern Warfare 3.

How to Get All Aftermarket Parts in MW3

Currently, the Renetti, COR-45, MCW, MTZ-762, WSP 9, WSP Swarm, DG 58 LSW, Pulemyot 762, and the MCW 6.8 have unlockable Aftermarket Parts in Call of Duty: Modern Warfare 3. You can check out how to unlock all of them below.

Aftermarket Part / Conversion Kit Name Weapon NameGun TypeHow to Unlock
JAK Ferocity Carbine KitRenettiHandgunLevel up the Renetti to level 21 and then get 30 Operator kills with it while equipped with 5 attachments.
XRK IP-V2 Conversion KitCOR-45HandgunSelect the Aftermarket Part as your Armory Unlock reward and then complete three daily challenges.
JAK Raven KitMCWAssault RifleComplete 5 Weekly Challenges from Week 1.
JAK Heretic Carbine KitMTZ-762Battle RifleLevel up the MTZ-762 to level 23 and then get 30 Operator kills with it while equipped with 5 attachments.
Broodmother .45 KitWSP-9SMGSelect the Aftermarket Part as your Armory Unlock reward and then complete three daily challenges.
WSP Akimbo Brace StocksWSP SwarmSMGComplete 5 Weekly Challenges from Week 3.
JAK Nightshade Rifle Kit DG 58 LSWLMGComplete 5 Weekly Challenges from Week 2.
JAK Annihilator Bullpup KitPulemyot 762LMGLevel up the weapon to level 28 and then get 25 Operator kills with it while firing from the hip or in the Tactical Stance.
MCW 6.8 Full-Auto ConversionMCW 6.8Marsman RifleSelect the Aftermarket Part as your Armory Unlock reward and then complete three daily challenges.

Related: Call of Duty: Modern Warfare 3 Review

Although only a few weapons will task you with maxing them to unlock their Aftermarket Part challenge, you will need to max out your desired weapon nonetheless to be able to equip the attachment. You can also get two Optic Aftermarket Parts —the Cronen Intlas MSP-12 and the Intlas Cas-14— as Armory Unlocks.

This guide was made while playing Call of Duty: Modern Warfare 3 on PS5.


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Image of Franklin Bellone Borges
Franklin Bellone Borges
Franklin is a writer and journalist. A video game fanatic with more than 3 years of experience, his work can also be seen on sites such as The Click, Games Atlas, and Try Hard Guides. When not writing, he is most likely making his wallet cry while playing Gacha Games or ending the reign of the Crystals in Final Fantasy XVI.