Modern Warfare 4 has fully released, and there are plenty of new guns and attachments to unlock for this new year of Call of Duty. In this guide, we'll suggest some recommended weapon builds, so you can see exactly which guns and attachments you'll want to focus on unlocking and leveling up early.
Call of Duty's Gunsmith feature returns in Modern Warfare 4. This customization system lets you create five-attachment builds for multiplayer. In addition to the standard five attachments, you can also include the gun's unique Apex attachment.
Apex attachments are special add-ons you can unlock for each gun, which will drastically change how the weapon is used. Apex attachments are similar to the weapon conversion kits found in the recent Call of Duty games, but in Modern Warfare 4 they don't cost one of your attachment slots.
Apex attachments aren’t unlocked until you’ve reached the maximum weapon level for a specific gun. Some of these attachments are a bit wacky and aren't practical add-ons, but others will offer viable bonuses to your weapon.
All of our recommended multiplayer builds for Modern Warfare 4 can be viewed below.
HAN 86
The HAN 86 assault rifle is one of the best choices for mid-to long-range combat, and this gun is fairly easy to use in multiplayer. The recommended attachments will boost the damage range, improve bullet velocity, and quicken your aim-down-sight speed.
Recommended HAN 86 attachments:
- Muzzle: XRK Mil-Tac Suppressor
- Barrel: SA H86 465MM
- Laser: XRK Clutch-LS
- Optic: Mini Reflex
- Rear Grip: XRK Justice II Grip
M4
The M4 is another powerful and easy-to-handle assault rifle in Modern Warfare 4. The recommended attachments will improve the damage range and bullet velocity, keep you off the minimap when firing, and also speed up your aim-down-sight speed.
Recommended M4 attachments:
- Muzzle: XRK Mil-Tac Suppressor
- Barrel: 18" LE Crosswind
- Laser: SA LAZ-500
- Optic: Mini Reflex
- Stock: Demo Dozer Stock
Optional: The M4 does have a practical Apex attachment called the Hurricane. This unique attachment transforms this assault rifle into a SMG variant similar to the FSS Hurricane SMG we've seen in previous Call of Duty games. The Hurricane makes the gun lighter and increases the fire rate. It's an optional add-on that's worth trying, but it will change how the weapon handling feels.
VEL 46
In terms of close-range power, the VEL 46 submachine gun is one of the best choices for multiplayer. This SMG is fairly easy to use and provides great mobility for running-and-gunning action across Modern Warfare 4's multiplayer maps. The recommended attachments will improve the damage range and bullet velocity, reduce recoil, and keep you off the minimap when firing.
Recommended VEL 46 attachments:
- Muzzle: XRK Herder 40
- Barrel: VB-46 Series 11
- Laser: XRK Clutch-LS
- Rear Grip: V46 R-Skel Grip
- Underbarrel: FSS Fireline Grip
Optional: The Vel 46 has an Apex attachment called Snap, which will drastically increase your weapon swap speed. This is a great add-on for this weapon build, especially if you're running the Overkill perk and swapping between two guns.
ISO Nightshade
Another powerful choice for submachine guns is the ISO Nightshade. This is another versatile option for close-range combat, as this gun features a fast rate of fire, decent mobility, and is fairly easy to control. The recommended attachments will improve your aim-down-sight speed, boost your ammo count, reduce recoil, and keep you off the minimap when firing.
Recommended ISO Nightshade attachments:
- Muzzle: XRK Herder 40
- Stock: EXP G2-44 Stock
- Rear Grip: Demo STP-1
- Magazine: 40 Round Mag
- Underbarrel: FSS Fireline
Optional: The ISO Trace is the gun's unique Apex attachment. This will allow you to track players who you've tagged up with bullets, showing the player's red dot and positioning on the map.
Finn LMG
If you're looking for heavy firepower and larger ammo capacity, you might want to consider the Finn LMG. This light machine gun is fairly mobile and easy to control. The recommended attachments will improve your aim-down-sight speed, reduce gun sway, and keep you off the minimap when firing.
Recommended Finn LMG attachments:
- Muzzle: XRK Mil-Tac Suppressor
- Laser: SZ GEN6 PEQ
- Optic: ZLR Type C
- Stock: EXP Bulldog-9
- Rear Grip: XRK Singularity-13
KG-7 Vulcan
For sniping, the KG-7 Vulcan is the best sniper rifle choice for multiplayer. This is a powerful bolt-action rifle with decent mobility. The recommended attachments will provide better firing stability, reduce flinch, improve movement speed, and increase your aim-down-sight speed.
Recommended KG-7 Vulcan attachments:
- Muzzle: IVANOV QR600
- Barrel: TT Baem 12
- Bolt: KT76 Light Bolt
- Optic: Schlager 7x
- Comb: TT Type 40-Comb
Sang 9MM
If you're not running the Overkill perk on your classes and need a solid secondary weapon, the Sang 9MM pistol is a solid choice. The is an easy-to-use 9MM pistol with very little recoil. The recommended attachments will improve the gun's damage range and bullet velocity, boost your ammo count, and keep you off the minimap when firing.
Recommended Sang 9MM attachments:
- Muzzle: Expedite drill L4
- Barrel: TT CP-9MM Barrel
- Optic: Cronen Zero-K
- Magazine: 17-Round Mag
- Trigger Action: Sang Highmatch
Optional: Sang Breach is the gun's unique Apex attachment. This add-on is worth considering as it will convert the gun into a pocket-sized shotgun with a 12-gauge undermount. You can only shoot one 12-gauge shell at a time, but that's still a powerful addition for this gun.