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M4

All-round rifle · Assault rifle

Best M4 Loadout

The rifle to level first: forgiving recoil and reliable in mid-range fights.

S tier · All-rounderChecked for the Launch patch · 23 Oct 2026

M4 class setup

  1. MuzzleFSS IS300This suppressor improves accuracy in addition to position concealment. Significant hit to aiming speed.
  2. UnderbarrelFSS Fireline GripLow-profile angled grip that settles firing into a steadier track. Forward posture slows snap to sights.
  3. LaserSA LAZ-500
  4. StockPF1 Fixed StockFor battlefield reliability, this fixed stock works to stabilize recoil when aiming down sights.
  5. Rear GripBrace DX GripA rigid, reinforced pistol grip designed to keep the weapon steady during sustained fire.
Perks
Quick Fix · Hardline · Battle Hardened
Lethal
Trip Wire · level 22
Tactical
Flash Grenade · level 4

Why this build works

  • Hardline drops the UAV from 5 kills to 4, so it pays off fast.
  • Trip Wire guards a flank on Hardpoint, and it links up with Trip Wires your squad places nearby.

At max level

Apex: M4 +Hurricane

Turns the M4 into a light, fast-firing 5.7x28mm build that plays more like an SMG.

Apex attachments are the last reward on a gun’s level track and don’t use a slot.

M4 camos and specsUnlock level, specs and every camo challenge for the M4.Track its camosGrinding camos while you level it? Tick them off in the camo tracker.Best ISO Nightshade loadoutSMG rusher: The SMG to build first. It led the beta trackers, and the launch patch made SMGs stronger at close to mid range.Best KG-7 Vulcan loadoutSniper: The sniper to learn first. Only three attachments made the two-tracker cut, so the last two slots are yours to fill.

Build from GameBoost’s Best MW4 Loadouts, which only includes an attachment when at least two loadout trackers agree. Attachment descriptions are the in-game text. If a name looks different in your Gunsmith, trust the game and pick the closest match. See every gun ranked on the MW4 tier list.