Modern Warfare 4 Best Assault Rifles Ranked in 2027
The best assault rifles in Modern Warfare 4 combine reliable damage, manageable recoil, responsive handling, and enough versatility to perform across different multiplayer maps. Whether you prefer aggressive close-range engagements or controlled long-distance shooting, choosing the right assault rifle can make your loadout more consistent.
The M4 takes our top spot for overall versatility, followed by the Kastov 762 for high-impact firepower and the Han 86 for accessible, fast-firing performance. The Hyeon Burst, Patriot XMR, and Axion complete our ranking of the six assault rifles confirmed for the Modern Warfare 4 beta.
This guide ranks every confirmed beta assault rifle, explains its strengths and weaknesses, and covers unlock requirements, Apex Attachments, and recommended playstyles.
Ranking note: This is an editorial ranking based on officially documented beta weapon characteristics, versatility, and customization potential as of October 19, 2026. Modern Warfare 4 launches on October 23, 2026, so these rankings are not verified results from the 2027 multiplayer meta.
Best Modern Warfare 4 Assault Rifles: Complete Ranking
According to Activision's official Modern Warfare 4 beta weapon guide, six assault rifles were accessible during the beta, including one restricted to a default loadout.
| Rank | Assault Rifle | Rating Tier | Best For | Beta Unlock |
|---|---|---|---|---|
| 1 | M4 | S | Overall versatility | Player Rank 9 |
| 2 | Kastov 762 | S | Heavy damage and controlled fire | Player Rank 21 |
| 3 | Han 86 | A | Fast-firing balanced gameplay | Immediately |
| 4 | Hyeon Burst | A | Burst accuracy and alternate fire modes | Player Rank 18 |
| 5 | Patriot XMR | B | Mid-to-long-range power | Player Rank 25 |
| 6 | Axion | B | Controlled automatic fire | Default Loadout only |
The tier labels represent our assessment of each weapon's documented characteristics. They are not official Activision ratings or a statistical ranking based on measured time-to-kill data.
1. M4 – Best Overall Assault Rifle in Modern Warfare 4
Tier: S
Weapon type: Fully automatic assault rifle
Beta unlock: Player Rank 9
Weapon levels: 68
Apex Attachment: M4 Hurricane
The M4 earns first place because it offers the broadest practical appeal among the confirmed Modern Warfare 4 assault rifles.
Activision describes the weapon as a highly adaptable service rifle that performs effectively across most combat situations. That versatility makes it a strong choice for players who want a dependable primary weapon without committing to a highly specialized combat role.
In multiplayer, an assault rifle needs to remain comfortable across different engagement distances. A weapon that performs well at medium range but becomes difficult to handle indoors can force players to change their approach constantly.
The M4's flexible design makes it a promising solution for players who regularly move between objectives, corridors, and open sightlines.
M4 Strengths
The main advantage of the M4 is adaptability.
It can be configured around recoil control, aiming speed, or mobility, depending on the available attachments and the player's preferences.
This makes it particularly appealing to players who enjoy experimenting with Gunsmith builds.
Another advantage is familiarity. Players who have used M4-style rifles in previous Call of Duty games may find its general combat role easier to understand.
However, familiar weapon names do not guarantee identical recoil patterns or performance between games.
M4 Weaknesses
The M4 does not specialize in a single extreme characteristic.
Players seeking the heaviest individual shots may prefer the Kastov 762 or Patriot XMR, while those who want a burst-fire rifle may prefer the Hyeon Burst.
Its actual competitive standing will also depend on post-launch weapon balancing.
Best M4 Attachment Priorities
For a balanced multiplayer configuration, prioritize:
- Recoil control for more consistent automatic fire.
- Aim-down-sight speed for responsive engagements.
- Bullet velocity or effective range for medium-distance fights.
- A clear optic if the default sights are uncomfortable.
- Mobility improvements that do not compromise too much stability.
Rather than equipping every attachment that improves one statistic, aim for a combination that preserves the weapon's versatility.
M4 Hurricane Apex Attachment
The M4 Hurricane is a specialized conversion that transforms the rifle into a more compact configuration.
It uses 5.7×28mm ammunition and emphasizes high-capacity firepower, maneuverability, and a faster firing rhythm.
This changes the M4's role considerably.
Players who prefer aggressive movement may find the Hurricane appealing, while those who favor traditional medium-range rifle combat may prefer the standard configuration.
Verdict: The M4 is our best overall assault rifle recommendation because of its adaptable design and broad range of potential loadouts.
2. Kastov 762 – Best Assault Rifle for High-Impact Damage
Tier: S
Weapon type: Fully automatic assault rifle
Beta unlock: Player Rank 21
Weapon levels: 71
Apex Attachments: Kastov 545 and Kastov ARC
The Kastov 762 takes second place thanks to its emphasis on powerful individual shots and its unusual customization options.
Chambered in 7.62×39mm, the weapon is designed around heavy impact.
However, that additional power comes with a clear trade-off: substantial recoil.
Players who can control automatic fire may find the Kastov 762 rewarding, particularly during medium-range engagements.
Unlike the M4, which prioritizes general flexibility, the Kastov encourages a more deliberate approach to aiming.
Kastov 762 Strengths
Its strongest characteristic is heavy per-shot impact.
This makes the weapon attractive to players who value damage potential and are comfortable managing recoil.
The Kastov also benefits from two distinct Apex Attachment options.
These give players different ways to adapt its handling and tactical capabilities.
Kastov 762 Weaknesses
Recoil is the main concern.
Players who struggle to maintain accuracy during sustained fire may find the weapon less forgiving than the M4 or Han 86.
Aiming stability and recoil management should therefore be priorities when building a Kastov loadout.
Best Kastov 762 Attachment Priorities
For a controlled assault rifle setup, focus on:
- Vertical and horizontal recoil management.
- Aiming stability.
- Effective range.
- Bullet velocity.
- A comfortable optic for medium-range encounters.
Players should test whether mobility-focused attachments introduce too much instability.
Kastov 545 Apex Attachment
The Kastov 545 converts the rifle to 5.45×39mm ammunition.
Activision describes this configuration as providing smoother handling and quicker follow-up shots.
That makes it particularly interesting for players who enjoy the Kastov platform but want a more manageable firing experience.
Kastov ARC Apex Attachment
The Kastov ARC introduces an experimental disruption system with an integrated optic.
Its specialized effect can interfere with infantry, electronics, and vehicles.
This gives the rifle a tactical role beyond conventional automatic fire.
Verdict: The Kastov 762 is our top recommendation for players who want heavier firepower and are willing to manage stronger recoil.
3. Han 86 – Best Assault Rifle for Beginners
Tier: A
Weapon type: Fully automatic assault rifle
Beta unlock: Immediately
Weapon levels: 68
Apex Attachment: Han 86 X20 Skybreaker
The Han 86 ranks third because it combines immediate availability with versatile combat characteristics.
It is one of the first assault rifles players can use, making it a natural starting point for learning Modern Warfare 4's weapon handling.
Chambered in 5.56mm, the Han 86 features a high firing rate and moderate damage.
According to Activision, it is designed to perform in both close-quarters encounters and longer-range engagements.
This flexibility makes it useful for players who are still developing their preferred combat style.
Han 86 Strengths
The Han 86's most important advantage is accessibility.
Players do not need to reach a higher rank before trying it.
Its high firing rate also makes it suitable for players who prefer sustained automatic fire.
Because the rifle is intended for several engagement distances, it provides opportunities to practice different types of combat without constantly switching weapons.
Han 86 Weaknesses
Moderate per-shot damage means the Han 86 may not provide the same heavy-impact feel as the Kastov 762.
Its firing characteristics also require players to maintain accuracy during sustained engagements.
A high rate of fire is useful only when enough shots connect with the target.
Best Han 86 Attachment Priorities
Recommended customization priorities include:
- Recoil stabilization.
- Improved handling.
- Effective range.
- A clear low-magnification optic.
- A balanced stock configuration.
Players should avoid sacrificing too much accuracy in pursuit of maximum movement speed.
Han 86 X20 Skybreaker Apex Attachment
The X20 Skybreaker adds a specialized targeting optic and a 20mm airburst launcher.
The launcher is designed to threaten opponents using cover.
This provides a tactical option that distinguishes the Han 86 from more conventional assault rifles.
However, players should become familiar with the standard rifle before relying on its specialized equipment.
Verdict: The Han 86 is the best starting assault rifle for beginners because it is immediately available and designed for versatile automatic combat.
4. Hyeon Burst – Best Assault Rifle for Burst-Fire Accuracy
Tier: A
Weapon type: Burst-fire assault rifle
Beta unlock: Player Rank 18
Weapon levels: 64
Apex Attachments: Hyeon Auto and Hyeon Hyperburst
The Hyeon Burst offers a different approach to assault rifle combat.
Rather than focusing on conventional sustained automatic fire, its standard configuration emphasizes powerful bursts.
Chambered in 6.8 SPC, the weapon is designed to deliver hard-hitting shots in controlled sequences.
This makes it particularly interesting for players who prefer accuracy and deliberate target selection.
The Hyeon also has two Apex options that significantly change its firing behavior.
Hyeon Burst Strengths
Burst-fire weapons encourage players to think carefully about timing and accuracy.
When used effectively, they can reward precise aiming and controlled engagements.
The Hyeon's main advantage is its ability to switch between distinct combat roles through Apex Attachments.
Players who initially prefer burst fire can later experiment with automatic configurations.
Hyeon Burst Weaknesses
Burst weapons can be less forgiving when a player misses part of a burst.
They may also feel less comfortable during sudden close-range encounters, depending on firing delay and handling.
Players accustomed to fully automatic rifles may need time to adjust.
Best Hyeon Burst Attachment Priorities
Focus on:
- Aiming stability.
- Recoil control between bursts.
- Effective range.
- Aim-down-sight speed.
- A clear optic that supports accurate target acquisition.
The goal is to make each burst predictable rather than maximize firing speed at the expense of accuracy.
Hyeon Auto Apex Attachment
Hyeon Auto converts the weapon into a fully automatic rifle.
This provides a different option for players who prefer sustained fire.
The conversion increases continuous firing capability compared with the standard burst configuration.
Hyeon Hyperburst Apex Attachment
Hyeon Hyperburst introduces a rapid three-round burst followed by slower automatic fire.
This creates a hybrid firing pattern that combines an initial burst with continued shooting.
Players who enjoy experimenting with unusual weapon behavior may find it particularly appealing.
Verdict: The Hyeon Burst is our best choice for players who prefer precision-focused rifles with multiple firing configurations.
5. Patriot XMR – Best for Controlled Mid-to-Long-Range Combat
Tier: B
Weapon type: Battle rifle, grouped with assault rifles in the beta guide
Beta unlock: Player Rank 25
Weapon levels: 64
Apex Attachment: Patriot XMR Volt
The Patriot XMR ranks fifth because it offers considerable power but requires more careful handling than the higher-ranked options.
Activision describes the Patriot XMR as a fully automatic rifle that delivers heavy impact with substantial recoil.
Its design favors controlled fire at medium and longer distances.
This makes it an appealing option for players who prefer positioning and deliberate engagements over constant rushing.
Although Activision labels it a battle rifle, the weapon appears within the assault rifle section of the official beta weapon guide.
Patriot XMR Strengths
The Patriot XMR's primary advantage is powerful automatic fire.
Players who maintain control and engage from favorable positions may find its characteristics rewarding.
Its heavier firing behavior also gives it a distinct identity compared with the faster, more flexible Han 86.
Patriot XMR Weaknesses
Substantial recoil makes the rifle more demanding.
Players who regularly engage opponents while moving quickly may find it difficult to maintain consistent accuracy.
The weapon is therefore less universally accessible than the M4.
Best Patriot XMR Attachment Priorities
Prioritize:
- Recoil reduction.
- Aiming stability.
- Bullet velocity.
- Effective range.
- A medium-range optic.
Mobility can be improved later, but maintaining control should be the first objective.
Patriot XMR Volt Apex Attachment
The Patriot XMR Volt introduces an underbarrel launcher that fires electrical darts.
Its purpose is to disrupt opponents and create opportunities during close-range encounters.
This gives the rifle an additional tactical option that contrasts with its conventional mid-to-long-range role.
Verdict: The Patriot XMR is a specialized choice for players who prefer powerful, controlled automatic fire.
6. Axion – Best Alternative Assault Rifle in Default Loadouts
Tier: B
Weapon type: Fully automatic assault rifle
Beta availability: Default Loadout only
Weapon levels listed: 67
Listed Apex Attachment: Axion Crusader
The Axion completes our ranking of the six confirmed beta assault rifles.
It is a .300 Blackout rifle designed around controlled automatic fire.
Activision describes the weapon as offering moderate recoil, solid impact, and a fast firing cycle.
These characteristics make it an interesting alternative for players who want to try a different assault rifle platform.
However, its beta availability creates an important limitation.
Axion Strengths
The Axion combines several appealing characteristics.
Moderate recoil can make sustained fire more manageable, while its fast firing cycle provides a responsive automatic weapon profile.
The rifle may appeal to players who prefer balanced performance without relying on heavy recoil or burst-fire mechanics.
Axion Weaknesses
During the beta, the Axion is restricted to a default loadout.
Activision specifically states that weapons available only through default loadouts cannot access their Gunsmith customization or Apex Attachments during the beta.
That restriction makes the Axion less flexible than the other assault rifles in this ranking.
Its sixth-place position reflects this customization limitation rather than a verified weakness in damage or time-to-kill performance.
Axion Crusader Apex Attachment
The official weapon guide describes the Axion Crusader as a receiver conversion that creates a compact, mobility-focused version of the rifle.
However, the Axion's default-loadout-only beta status prevents players from accessing that Apex Attachment during the beta.
Its availability in the final game should be verified separately.
Verdict: The Axion is worth trying for its controlled automatic-fire characteristics, but its beta customization restrictions limit its position in this ranking.
Modern Warfare 4 Assault Rifle Tier List Explained
Our ranking places the six confirmed beta assault rifles into three tiers.
| Tier | Weapons | Explanation |
|---|---|---|
| S Tier | M4, Kastov 762 | Strong overall versatility or high-impact potential |
| A Tier | Han 86, Hyeon Burst | Accessible balanced performance or specialized firing options |
| B Tier | Patriot XMR, Axion | More demanding handling or limited beta customization |
These categories are editorial recommendations.
They do not indicate that the weapons have been tested against each other using identical damage ranges, recoil measurements, or competitive match data.
Why the M4 Ranks Above the Kastov 762
The M4 takes first place because it is designed for broad versatility.
The Kastov 762 may appeal more to players who prioritize powerful individual shots, but its stronger recoil makes it less forgiving.
For players who want a flexible rifle that can be adapted to different maps, the M4 is the safer recommendation.
Why the Han 86 Ranks Above the Hyeon Burst
The Han 86 offers a conventional fully automatic firing pattern and is available immediately.
The Hyeon Burst requires greater familiarity with burst-fire timing.
Although the Hyeon offers interesting Apex conversions, the Han 86 is more approachable for a wider range of players.
Why the Axion Ranks Last
The Axion's position is influenced primarily by its default-loadout restriction during the beta.
A weapon that cannot access normal Gunsmith customization is harder to recommend for players who want to experiment with optimized loadouts.
That does not establish that the Axion has the lowest damage or worst performance.
Best Modern Warfare 4 Assault Rifles by Playstyle
Different assault rifles suit different approaches to multiplayer.
| Playstyle | Recommended Assault Rifle | Main Reason |
|---|---|---|
| Best overall | M4 | Flexible across engagement distances |
| High-impact firepower | Kastov 762 | Powerful individual shots |
| Beginners | Han 86 | Immediately available and versatile |
| Burst-fire precision | Hyeon Burst | Controlled burst damage |
| Long-range control | Patriot XMR | Powerful fire with deliberate handling |
| Default loadout experimentation | Axion | Balanced automatic-fire characteristics |
| Aggressive conversion build | M4 Hurricane | Compact design and high firing rate |
| Tactical utility | Han 86 X20 Skybreaker | Airburst launcher capability |
The most effective rifle for an individual player may differ from this ranking.
Players who consistently control the Kastov's recoil, for example, may prefer it over the M4.
How to Choose the Best Assault Rifle in Modern Warfare 4
Choosing an assault rifle involves more than comparing its damage description.
Several factors determine how comfortable and effective a weapon feels.
Recoil Control
Recoil affects how easily players can maintain accuracy during repeated shots.
A rifle with strong damage but difficult recoil may perform worse for a player who struggles to keep shots on target.
The Kastov 762 and Patriot XMR place greater emphasis on recoil management than some lighter alternatives.
Damage and Effective Range
Weapons can behave differently across engagement distances.
A rifle that feels powerful at medium range may not be the most comfortable option during close-quarters encounters.
Players should choose weapons that suit the distances they encounter most frequently.
Aim-Down-Sight Speed
Aim-down-sight speed influences how quickly players can prepare for an engagement.
Aggressive players may prefer faster handling, while defensive players may accept slower aiming in exchange for stability.
Mobility
Mobility affects how comfortable a weapon feels during movement.
A compact configuration can be appealing for players who frequently change positions.
However, maximizing mobility may introduce trade-offs in recoil control or effective range.
Apex Attachment Potential
Apex Attachments can substantially change a weapon's behavior.
For example, the M4 Hurricane creates a more compact rifle, while the Hyeon Auto changes the Hyeon Burst into a fully automatic weapon.
These upgrades provide additional reasons to experiment with different rifles.
Best Gunsmith Setup for Modern Warfare 4 Assault Rifles
Modern Warfare 4 expands weapon customization through Gunsmith and Apex Attachments.
Instead of applying the same attachments to every rifle, players should identify the characteristics they want to improve.
Balanced Assault Rifle Build
Recommended weapon: M4 or Han 86
Prioritize recoil control, aiming speed, and effective range.
This configuration is suitable for players who want to move between objectives without specializing in one engagement distance.
High-Damage Assault Rifle Build
Recommended weapon: Kastov 762 or Patriot XMR
Focus on recoil stabilization, aiming stability, and bullet velocity.
This approach is more appropriate for deliberate engagements where accuracy matters more than maximum movement speed.
Precision Assault Rifle Build
Recommended weapon: Hyeon Burst
Prioritize a clear optic, aiming stability, and consistent recoil behavior.
The goal is to improve the reliability of each burst.
Aggressive Assault Rifle Build
Recommended weapon: M4 with Hurricane conversion
Focus on mobility and handling while preserving enough recoil control for close-range engagements.
This configuration is worth exploring for players who enjoy fast-paced multiplayer.
How to Unlock Every Modern Warfare 4 Assault Rifle
The official beta progression system provides the following unlock requirements.
| Assault Rifle | Beta Unlock Requirement |
|---|---|
| Han 86 | Available immediately |
| M4 | Player Rank 9 |
| Hyeon Burst | Player Rank 18 |
| Kastov 762 | Player Rank 21 |
| Patriot XMR | Player Rank 25 |
| Axion | Default Loadout only |
These requirements apply to the beta and should not automatically be treated as permanent unlock conditions for the full release.
According to Activision, Create a Class becomes available at Player Level 4 during the beta.
Players can also use default loadouts to experiment with certain weapons before unlocking custom configurations.
Tips for Faster Weapon Progression
Focus on one or two rifles instead of constantly switching between different weapons.
Use the Firing Range to compare recoil and handling before entering matches.
Check progression challenges for opportunities to earn additional experience.
Finally, remember that Apex Attachments are associated with weapon leveling, so mastering a favorite rifle can unlock additional customization options.
How Apex Attachments Affect the Assault Rifle Rankings
Apex Attachments are a major part of Modern Warfare 4's weapon customization system.
Unlike standard attachments, they can introduce entirely new mechanics or firing configurations.
Activision confirms that Apex Attachments are equipped separately from normal Gunsmith attachments and do not consume a standard attachment slot.
| Assault Rifle | Apex Attachment | Main Function |
|---|---|---|
| M4 | M4 Hurricane | Compact, high-rate-of-fire conversion |
| Kastov 762 | Kastov 545 | Smoother handling with 5.45×39mm ammunition |
| Kastov 762 | Kastov ARC | Specialized disruption system |
| Han 86 | X20 Skybreaker | Airburst launcher and targeting optic |
| Hyeon Burst | Hyeon Auto | Fully automatic conversion |
| Hyeon Burst | Hyeon Hyperburst | Rapid burst followed by automatic fire |
| Patriot XMR | Patriot XMR Volt | Electrical dart launcher |
| Axion | Axion Crusader | Compact, mobility-focused conversion |
The Axion Crusader is listed in Activision's weapon information, but it is not accessible through the Axion's default-only beta configuration.
These modifications can change a weapon's preferred role, making it important to evaluate both standard and Apex-equipped configurations.
Frequently Asked Questions
What is the best assault rifle in Modern Warfare 4 in 2027?
The M4 is our top recommendation based on its officially documented versatility and customization potential. However, a verified 2027 competitive ranking is not available as of October 19, 2026.
Is the M4 better than the Kastov 762?
The M4 is generally easier to recommend for players seeking versatility, while the Kastov 762 is designed around heavier individual shots and stronger recoil. Which is better depends on the player's accuracy, preferred range, and the game's current balance.
What is the best Modern Warfare 4 assault rifle for beginners?
The Han 86 is a strong beginner option because it is available immediately and combines a high rate of fire with versatile handling characteristics.
Which Modern Warfare 4 assault rifle has the highest damage?
Activision describes the Kastov 762 and Patriot XMR as high-impact rifles, but the official beta overview does not provide enough standardized damage data to establish a definitive highest-damage ranking across every assault rifle.
Is the Hyeon Burst good in Modern Warfare 4?
The Hyeon Burst is worth considering for players who enjoy precise burst fire. Its Hyeon Auto and Hyperburst Apex options also provide alternative firing configurations.
How many assault rifles are in Modern Warfare 4?
Six assault rifles were accessible during the beta: M4, Han 86, Hyeon Burst, Kastov 762, Patriot XMR, and Axion. The full game's weapon selection may differ.
What is the best assault rifle for long-range combat?
The Patriot XMR and Kastov 762 are worth considering for controlled medium-to-long-range engagements. Both emphasize heavier firepower but require recoil management.
How do you unlock the M4 in Modern Warfare 4?
During the beta, the M4 unlocks at Player Rank 9. Full-release requirements should be checked in the current progression menu.
What is the M4 Hurricane?
The M4 Hurricane is an Apex Attachment that converts the M4 into a compact, high-capacity configuration chambered in 5.7×28mm ammunition.
Can you customize the Axion assault rifle?
During the beta, the Axion is available only through a default loadout, which prevents access to Gunsmith customization and its listed Apex Attachment. Availability in the full game should be verified separately.
Conclusion
The best Modern Warfare 4 assault rifle depends on how you prefer to approach multiplayer combat.
The M4 takes first place in our ranking because of its versatility and flexible customization options. The Kastov 762 follows closely for players who value powerful individual shots and can manage heavier recoil.
The Han 86 is an accessible choice for beginners, while the Hyeon Burst offers a different experience built around controlled bursts and specialized firing conversions.
The Patriot XMR and Axion provide additional alternatives for players who enjoy experimenting with different weapon characteristics.
As Modern Warfare 4 launches and receives updates through 2027, weapon balancing, unlock requirements, and Apex Attachment performance may change. Revisit the rankings after major updates and test your preferred assault rifles in the Firing Range to find the configuration that best suits your playstyle.