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

Call of Duty Modern Warfare 3 (MW3)

How to Unlock JAK Widemouth Barrel

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The JAK Widemouth Barrel is an Aftermarket Parts Conversion Kit for the MORS in Call of Duty Modern Warfare 3 (MW3). Check out our guide to learn how to unlock the JAK Widemouth Barrel, its detailed stats breakdown, and its converted weapon.

List of Contents

How to Unlock JAK Widemouth Barrel

Complete 5 Week 1 Challenges

JAK Widemouth Barrel Challenges

Players can get the JAK Widemouth Barrel by completing 5 Week 1 Challenges in MW3 Multiplayer or Zombies. The JAK Widemouth Barrel will be added to your available attachments once you have 5 completed challenges from one of game modes.

List of All Weekly Challenges and Rewards

JAK Widemouth Barrel Converted Gun

Conversion Kit for the MORS

The JAK Widemouth Barrel is a full conversion kit for the MORS. It allows this Sniper Rifle to fire multiple projectiles with a single shot, which functions similarly to a Blunderbuss.

MORS Best Loadout and Build

JAK Widemouth Barrel Stats

Pros and Cons

Pros Cons
Modern Warfare 3 - New Pro FunctionBall Bearings
Modern Warfare 3 - Major ProAim Down Sight Speed
Modern Warfare 3 - Major ProAim Walking Speed
Modern Warfare 3 - Major ConDamage
Modern Warfare 3 - Major ConGun Kick Control
Modern Warfare 3 - Major ConVertical Recoil
Modern Warfare 3 - Major ConBullet Velocity and Range

Chevron count determines the effectivesness of the stat change while polygonal arrows indicate a new function being added.

Detailed Stat Adjustments

Damage
Headshot Damage 25.0 (-91%)
Upper Torso Damage 25.0 (-85%)
Lower Torso Damage 25.0 (-84%)
Target Flinch 1.5N
Range
Effective Damage Range 7.6m (-85%)
Minimum Damage Range 20.3m (-60%)
Bullet Velocity 790.0 m/s (-18%)
Fire Rate
Rate of Fire 200.0 rpm
Recoil Control
Recoil Gun Kick 40.00 degree/s (+100%)
Horizontal Recoil 0.00 degree/s
Vertical Recoil 64.00 degree/s (+100%)
Accuracy
Hipfire Spread Min 8.0 degree/s (-11%)
Hipfire Spread Max 11.0 degree/s (-27%)
Flinch Resistance 0.85 N
Mobility
Movement Speed 4.3 m/s (+5%)
Crouch Movement Speed 2.1 m/s (+11%)
Sprint Speed 5.6 m/s (+6%)
Tactical Sprint Speed 6.6 m/s (+5%)
ADS Movement Speed 3.0 m/s (+114%)
Handling
ADS Speed 280.0 ms (+52%)
Reload Quickness 1.6 s
Sprint to Fire Speed 245.0 ms (-10%)
Swap Speed 1499.0 ms

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

All Conversion Kits in MW3

All Related Attachments
Broodmother .45 Kit JAK Annihilator Bullpup Kit JAK Atlas Kit
JAK Backsaw Kit JAK Beholder Rifle Kit JAK Burnout
JAK Ettin Double Barrel Kit JAK Ferocity Carbine Kit JAK Gunslinger
JAK Harbinger Kit JAK Headhunter Carbine Conversion JAK Heretic Carbine Kit
JAK Jawbreaker JAK Maglift Kit JAK Nightshade Rifle Kit
JAK Outlaw-277 Kit JAK Patriot JAK Raven Kit
JAK Requiem JAK Revenger Kit JAK Scimitar Kit
JAK Shadow Titan Kit JAK Signal Burst JAK Thumper-656
JAK Thunder LMG Kit JAK Tyrant 762 Kit JAK Volkh
JAK Wardens (Model 1887) JAK Widemouth Barrel MCW 6.8 Full-Auto Conversion Kit
WSP Akimbo Brace Stock XRK IP-V2 Conversion Kit

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