The JAK Widemouth Aftermarket Part is now available to unlock in MW3 and Warzone. This conversion kit is exclusively designed for the MORS sniper rifle, transforming it into a close-range shotgun. The barrel modification allows the sniper to shoot magnetic ball bearings that shatter upon firing, creating a barrage of small and lethal projectiles.Equipping this Conversion Kit makes the weapon extremely powerful at close range, but its effectiveness diminishes significantly with distance.To unlock this Aftermarket Part, you must complete a few Season 5 Week 1 challenges. This guide will outline the steps to unlock the JAK Widemouth Conversion Kit in MW3 and Warzone.How to get the JAK Widemouth Aftermarket Part in MW3 and WarzoneComplete any five Season 5 Week 1 challenges to unlock the JAK Widemouth Aftermarket Part in Call of Duty MW3 and Warzone.MW3 Multiplayer, MW3 Zombies, and Warzone have their own set of challenges. Select your preferred title and complete five tasks. Additionally, completing any challenge will reward you with extra experience points (XP).MW3 and Warzone Season 5 Week 1 challengesHere are all the tasks, as presented in-game:MW3 MultiplayerAll MW3 Multiplayer Season 5 Week 1 challenges (Image via Activision)Get 40 Operator KillsGet 25 Operator Kills while in MidairGet 10 Operator 1 Shot 1 Kills with Sniper RiflesGet 3 Operator Triple Kills with SMGsGet 30 Operator Longshot KillsGet 20 Operator Hipfire Kills with SMGsGet 5 Operator Clean Kills with ShotgunsMW3 ZombiesAll MW3 Zombies Season 5 Week 1 challenges (Image via Activision)Get 250 KillsGet 250 Kills with a Pack-A-Punched ShotgunGet 200 One Shot Kills with a Sniper RifleGet 3 Mangler Kills with a SMGGet 250 Kills with Shotguns at Epic (Purple) Rarity or HigherGet 100 Hipfire Kills with a SMGGet 10 Zombie Kills without Taking Damage 20 Times with a ShotgunWarzone (Battle Royale)All Warzone Season 5 Week 1 challenges (Image via Activision)In Warzone Urzikstan, Get 15 Operator Kills in the North-West Region (Resort, Power, Seaport, Cargo)In Warzone Urzikstan, Get 15 Operator Kills in the Southern Region (City, Suburbs, Manor)In Warzone, place in the top 10 7 time(s)In Warzone, open 75 Loot CachesIn Warzone Urzikstan, Get 15 Operator Kills in the Eastern Region Military Base (Military Base, Farms)In Warzone Urzikstan, Get 15 Operator Kills in the Central Region (Old Town, Low Town)In Warzone, complete 15 Contract(s)Acquiring the JAK Widemouth Aftermarket Part in MW3 Multiplayer won't be too challenging, as this mode's tasks are straightforward and easily completable. They require various types of kills, such as Clean Kills, Hipfire Kills, Triple Kills, and more. You can complete multiple tasks in a single match.The tasks are also easy and doable for MW3 Zombies as well, but they may take some time as you might need to infil and exfil multiple times to complete all five tasks.However, Warzone players may face a slightly greater challenge, as most tasks require you to gather kills in different regions of the map, which could take more time to accomplish.That covers everything there is to know about the unlocking procedure for the JAK Widemouth Aftermarket Part in MW3 and Warzone.Check out our other Call of Duty articles:Warzone playlist update (July 24-31, 2024): Everything we knowModern Warfare 3 Season 5 patch notes: Slam Deathmatch, Cel-shaded maps, Zombies changes, and moreWarzone and MW3 Season 5 BlackCell Battle Pass: Price, rewards, and moreAll Weapon and killstreak balancing changes in MW3 Season 5