Call of Duty Modern Warfare 3 (MW3) Walkthrough & Guides Wiki

Call of Duty Modern Warfare 3 (MW3)

How to Unlock FSS Sharkfin 90 Attachment

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☆ Rarity vs Pack-a-Punch Damage Chart

The FSS Sharkfin 90 is a gun attachment found under the Underbarrels attachment category of Modern Warfare 3 (MW3). Check out our guide to learn how to unlock the FSS Sharkfin 90 and find out all compatible guns for this attachment!

List of Contents

How to Unlock FSS Sharkfin 90

Level Up Guns in MW3 Multiplayer Modes

The FSS Sharkfin 90 attachment can be unlocked by leveling up the following guns in MW3 multiplayer, Zombies, or Warzone:

Weapon Required Level
Modern Warfare 3 -Fennec 45Fennec 45 Raise the Fennec 45 to Level 2
Modern Warfare 3 -DM56DM56 Raise the DM56 to Level 6

Complete the Attachment's Armory Unlock Challenge

Modern Warfare 3 - Armory Unlock Challenge for Attachments

Alternatively, players who have reached Account Level 25 can opt to complete Armory Unlock challenges to get the FSS Sharkfin 90 attachment, early.

Once you unlock this feature, modify your chosen gun at the Gunsmith and select the FSS Sharkfin 90 from the Underbarrel attachment slot of your weapon. This should activate its Armory Unlock contract, allowing you to complete Daily and Bonus Challenges to get it earlier.

Armory Unlock Challenges

FSS Sharkfin 90 Compatible Guns

Guns That Can Use the Attachment
Modern Warfare 3 -X13 AutoX13 Auto Modern Warfare 3 -VEL 46VEL 46 Modern Warfare 3 -Lachmann SubLachmann Sub
Modern Warfare 3 -FSS HurricaneFSS Hurricane Modern Warfare 3 -PDSW 528PDSW 528 Modern Warfare 3 -Fennec 45Fennec 45
Modern Warfare 3 -ISO 45ISO 45 Modern Warfare 3 -Lachmann ShroudLachmann Shroud Modern Warfare 3 -ISO 9mmISO 9mm
Modern Warfare 3 -Kastov-74uKastov-74u Modern Warfare 3 -Kastov 545Kastov 545 Modern Warfare 3 -Kastov 762Kastov 762
Modern Warfare 3 -M4M4 Modern Warfare 3 -M16M16 Modern Warfare 3 -TAQ-56TAQ-56
Modern Warfare 3 -STB 556STB 556 Modern Warfare 3 -ISO HemlockISO Hemlock Modern Warfare 3 -ChimeraChimera
Modern Warfare 3 -M13BM13B Modern Warfare 3 -Tempus RazorbackTempus Razorback Modern Warfare 3 -M13CM13C
Modern Warfare 3 -FR AvancerFR Avancer Modern Warfare 3 -TR-76 GeistTR-76 Geist Modern Warfare 3 -Lachmann-556Lachmann-556
Modern Warfare 3 -Lockwood 300Lockwood 300 Modern Warfare 3 -Expedite 12Expedite 12 Modern Warfare 3 -Bryson 890Bryson 890
Modern Warfare 3 -Bryson 800Bryson 800 Modern Warfare 3 -KV BroadsideKV Broadside Modern Warfare 3 -SO-14SO-14
Modern Warfare 3 -TAQ-VTAQ-V Modern Warfare 3 -FTAC ReconFTAC Recon Modern Warfare 3 -Lachmann-762Lachmann-762
Modern Warfare 3 -Cronen SquallCronen Squall Modern Warfare 3 -SAKIN MG38SAKIN MG38 Modern Warfare 3 -SAKIN MG38SAKIN MG38
Modern Warfare 3 -HCR 56HCR 56 Modern Warfare 3 -556 Icarus556 Icarus Modern Warfare 3 -RPKRPK
Modern Warfare 3 -RAPP HRAPP H Modern Warfare 3 -RAPP HRAPP H Modern Warfare 3 -EBR-14EBR-14
Modern Warfare 3 -Lockwood Mk2Lockwood Mk2 Modern Warfare 3 -LM-SLM-S Modern Warfare 3 -TAQ-MTAQ-M
Modern Warfare 3 -Tempus TorrentTempus Torrent Modern Warfare 3 -CrossbowCrossbow Modern Warfare 3 -SA-B 50SA-B 50
Modern Warfare 3 -Signal 50Signal 50 Modern Warfare 3 -MCWMCW Modern Warfare 3 -Bas-BBas-B
Modern Warfare 3 -MTZ-762MTZ-762 Modern Warfare 3 -KV InhibitorKV Inhibitor Modern Warfare 3 -LongbowLongbow
Modern Warfare 3 -Holger 26Holger 26 Modern Warfare 3 -RiveterRiveter Modern Warfare 3 -Bas-PBas-P
Modern Warfare 3 -FR 5.56FR 5.56 Modern Warfare 3 -Bruen Mk9Bruen Mk9 Modern Warfare 3 -TAQ EradicatorTAQ Eradicator
Modern Warfare 3 -Holger 556Holger 556 Modern Warfare 3 -KVD EnforcerKVD Enforcer Modern Warfare 3 -WSP SwarmWSP Swarm
Modern Warfare 3 -Striker 9Striker 9 Modern Warfare 3 -DG-56DG-56 Modern Warfare 3 -SidewinderSidewinder
Modern Warfare 3 -WSP-9WSP-9 Modern Warfare 3 -HaymakerHaymaker Modern Warfare 3 -DG-58 LSWDG-58 LSW
Modern Warfare 3 -DM56DM56 Modern Warfare 3 -TYRTYR Modern Warfare 3 -RAM-7RAM-7
Modern Warfare 3 -HRM-9HRM-9 Modern Warfare 3 -BP50BP50 Modern Warfare 3 -RAM-9RAM-9
SOA Subverter Modern Warfare 3 -MORSMORS Modern Warfare 3 -FJX HorusFJX Horus
BAL-27 Modern Warfare 3 -Superi 46Superi 46 Modern Warfare 3 -Kar98kKar98k
Modern Warfare 3 -STG44STG44 Modern Warfare 3 -DTIR 30-06DTIR 30-06 Modern Warfare 3 -Kastov LSWKastov LSW

Modern Warfare 3 (MW3) Related Guides

Modern Warfare 3 - Attachments

List of All Attachments

Attachment Types in MW3

Attachments By Type
Barrel Stock Ammunition Muzzle
Rear Grip Optic Underbarrel Magazine
Receiver Laser Comb Trigger Action
Guard Bolt Arm Rail
Carry Handle Lever Loader Wire
Conversion Kit

Best Underbarrels to Equip in MW3

Best MW3 Underbarrels
This list is under construction!

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