Apex Attachments in Modern Warfare 4: All Unlocks and Best Picks
What Apex Attachments Are and Why They Matter
Apex Attachments in Modern Warfare 4 are unique upgrades tied to a specific weapon. Regular attachments tweak recoil, range or aim speed, while an Apex changes how the gun actually works. Oden Sentinel turns an assault rifle into a semi-auto sniper, Wz.55 Striga Rampage makes an SMG dual-wield, and Han X20 Skybreaker adds an airburst launcher.
At launch on October 23, 2026, there were 28 Apexes: one for each of the 24 primary guns and the 4 pistols. Launchers and the FSS Carbon Edge 1095 melee weapon have none. Season 1, which went live on November 5, added more, and some new ones are handed out through events, so the total is now above 28.
Three things to know right away. An Apex unlocks only at a weapon's maximum Weapon Level. By all accounts it sits in its own slot and does not use any of your five regular attachment slots. But some Apexes lock out whole attachment categories, and that shapes your build more than it first looks.
How to Unlock an Apex Attachment
The requirement is simple: take the weapon to its maximum Weapon Level. That is a separate track from Player Level. The M4, for example, unlocks at Player Level 14, but its M4 Hurricane waits at Weapon Level 72.
Unlock the gun by reaching its required Player Level.
Run it in your Multiplayer loadout or build it through the Gunsmith in DMZ.
Earn Weapon XP in Multiplayer matches or DMZ runs.
At max level the Apex unlocks and can be placed in its dedicated slot in the Gunsmith.
Level numbers differ slightly between launch listings. Han X20 Skybreaker and M4 Hurricane are most often listed at level 72, but 68 also appears. Trust the number shown in the weapon menu. If the road to max feels long, weapon leveling helps, and overall account progress moves faster with leveling.
All Apex Attachments by Weapon Class
Here are all 28 launch Apexes by class. Weapon Levels follow launch listings and can differ by a few points.
Assault rifles (8). Han X20 Skybreaker: integrated optic and 20mm airburst launcher, blocks optic, stock and barrel. M4 Hurricane: a fast, light 5.7x28mm conversion, blocks barrel and magazine. Hyeon Hyperburst: a rapid three-round burst, then slower automatic fire. Patriot XMR Volt: electrical darts that incapacitate enemies. Kastov ARC: an RF pulse that disrupts infantry, vehicles and electronics. Oden Sentinel: a semi-auto sniper setup with scope, suppressor and bipod. Axion Clearcut: a chainsaw-style grip with better hipfire, blocks five categories. Cronen Maelstrom: an infrared-guided missile. Levels here sit roughly between 65 and 72, and assault rifles leveling covers the grind.
SMGs (5). ISO Trace tags enemies and shows their movement, VEL 46 Snap speeds up weapon swaps, Wz.55 Striga Rampage dual-wields, PPSh-41 Ember leaves burning zones on the ground, and X-58 Void makes shots quieter and hides tracking info. Levels fall around 53-64, the shortest road among primary guns. submachine guns leveling speeds it up.
Shotguns (2). Rezi 12 Enforcer converts the gun to pump-action with explosive slugs, and Warlord Lumen adds a rechargeable strobe that disorients enemies while you aim. Both wait at Weapon Level 60, and shotguns leveling shortens the trip.
LMGs (3). FiNN Adverse raises fire rate but adds overheating. Type 73 Assault gets a top-mounted magazine of explosive rounds. APOC-338 Praetor switches to a ten-round belt with semi-auto fire. Levels range from 56 to 65, and light machine guns leveling clears them fastest.
Marksman rifles (3). MAR-9 Auto gives fully automatic fire, Oris 8.6 Razor holds three throwing knives, and Mosin Harpoon adds a bayonet harpoon with longer melee reach. Levels sit around 69-73, and marksman rifles leveling speeds them up.
Sniper rifles (3). KG-7 Drillcharge fires side projectiles that pierce surfaces before exploding. Astaroth .57 Infiltrator detects enemies through cover with sonar and RF pulses. Signal Inferno loads incendiary rounds that hit vehicles and killstreaks harder. The range is 54-75, and sniper rifles leveling helps there.
Pistols (4). SANG Breach and Krait P68 Commando unlock at Weapon Level 38, GS Magna for the .50 GS at 37, and Mojave Lawless at 44. SANG Breach adds a single-shot 12-gauge shotgun, Krait P68 Commando a tactical knife, GS Magna makes the .50 GS fully automatic, and Mojave Lawless lets you fan the hammer from the hip. Pistols finish fastest, so they are the place to start, and handguns leveling cuts the road even more.
Gunsmith Restrictions
An Apex does not take one of your five regular slots, but it often removes the categories themselves. Axion Clearcut closes five categories, while FiNN Adverse, Rezi 12 Enforcer, Hyeon Hyperburst and KG-7 Drillcharge come without any.
The practical build order is this. Pick the Apex first, check which categories remain, and only then choose the rest of your attachments. Otherwise you will rebuild the whole setup. The Firing Range is a safe place to test the result.
It also matters what exactly is blocked. Some Apexes cost you the optic and stock, others take the barrel or magazine, and a few close the underbarrel or trigger slot. The more categories are closed, the more the gun commits to one role.
Best Apex Attachments by Playstyle
There is no universal winner, so pick the Apex that fixes a weakness in your loadout instead of unlocking everything at random. The table lists solid picks for common jobs.
Apex | Best for | Why it fits |
|---|---|---|
M4 Hurricane | Aggressive rifle play | Better mobility and fire rate |
Han X20 Skybreaker | Objective modes | Airburst shells pressure enemies behind cover |
ISO Trace | Tracking enemies | A tagged target stays visible on screen |
Wz.55 Striga Rampage | Close range | Two guns give heavy firepower in tight spaces |
X-58 Void | Stealth play | Quieter shots and less info for opponents |
Oden Sentinel | Long-range precision | A suppressed semi-auto sniper setup |
Signal Inferno | Vehicles and killstreaks | Incendiary rounds deal extra damage |
SANG Breach | First Apex | A shotgun on a pistol that unlocks early |
If you fight from the hip on tight maps, start with Striga Rampage or Hurricane. Skybreaker suits objective modes, but a direct hit produces a dud shell, so aim near the enemy rather than at them. For information on opponents, take ISO Trace or Astaroth .57 Infiltrator.
How to Reach Max Weapon Level Faster
The longest tracks belong to guns that cap above level 70, so plan your grind ahead.
Start with pistols and short-track guns. They give an Apex far sooner than rifles.
Stick to one weapon in the mode you play most. Weapon XP counts in Multiplayer and DMZ alike.
Activate Double Weapon XP for sessions built around one gun.
Use shared attachments. Reportedly, already unlocked compatible attachments can grant Bonus Level Ups.
Check the Gunsmith before swapping guns or prestiging, and finish the remaining unlocks.
Weapon Prestige, DMZ and Events
Apexes are not lost to weapon prestige. The level resets to 1 and regular attachments relock, but unlocked Apexes and Blueprint attachments stay. An early post-launch patch fixed a bug that relocked some Apexes after prestige.
Apexes also work in DMZ. The Gunsmith at the Forward Operating Base runs on DMZ cash, so you buy the attachments you need with money found in raids. Available builds and prices depend on the current update.
The Apexes from the beta are not in the launch roster. Infinity Ward described them as seasonal event content and said they will return, with no date given. Season 1 opened with a Wager Match event, with rewards that include several Apexes. Stats may have shifted after the first weapon balance patches, so check current numbers in game.