Game: Modern Warfare 4MW4

Hyeon Burst: Assault Rifle stats and attachments in MW4

Hyeon Burst is an assault rifle in Call of Duty: Modern Warfare 4. It fires 375 RPM from a 30-round magazine with 90 reserve rounds, and it unlocks at Player Level 21. Its Apex Attachment is the Hyeon Hyperburst.

Build with Hyeon BurstAll assault rifles

Hyeon Burst in Modern Warfare 4

Assault RifleUnlocks at Player Level 21Apex: Hyeon Hyperburst

Community-reported

Tier B (ggranked, 1,030 ms) · Tier A (DMZ Radar). Tier lists

4 Multiplayer and 1 DMZ builds from CODMunity, pick rate 8.2%. Popular builds

Official Hyeon Burst stats

Hyeon Burst stats from Activision's launch weapon sheet
StatValueRank among assault rifles
Fire rate375 RPM#8 of 8
Magazine30 rounds#1 of 8 (tied)
Reserve90 rounds#2 of 8 (tied)
Total rounds120Derived: magazine plus reserve
Weapon levels68#5 of 8 (tied)
Unlock levelPlayer Level 21Level cap is 55
Caliber6.8 mmAs named in Activision weapon text

Damage, time to kill and the in-game Gunsmith bars are not published by Activision, so they are not shown. Community-reported movement, handling and recoil values follow in their own section.

Derived firing numbers

Numbers calculated from the published fire rate and magazine size
NumberValue
Shots per second6.3
Time between shots160 ms
First to last shot of a full magazine4.64 s

These are arithmetic on the published fire rate and magazine size. They ignore reloads, recoil and burst or pump cycling, and they say nothing about damage.

Hyeon Burst community-reported stats

Community-reportedNothing attached, from CODMunity (read ); community-reported and unverified.

How this is sourced

Movement, handling, recoil and ammo values for the Hyeon Burst with nothing attached. Activision has not published them, and they are launch data that changes with patches. Fire rate, magazine size and total rounds are Activision's published numbers. Damage and time to kill are not included.

Each attachment below lists its biggest changes as a percentage of the value above, and the changes of everything equipped are multiplied together (the source's rule, not confirmed by Activision). The Apex Attachment is listed with its own changes further down. Where these numbers come from.

Mobility

Movement speed
4.58 m/s
ADS movement speed
2.36 m/s
Sprint speed
6.07 m/s
Tactical sprint speed
7.11 m/s
Crouch movement speed
2.11 m/s
Strafe speed
3.50 m/s
Firing movement speed
4.01 m/s

Handling

ADS speed
275 ms
ADS out speed
360 ms
Sprint to fire speed
210 ms
Reload time
3400 ms
Raise speed
967 ms
Drop speed
533 ms

Recoil

Vertical recoil
38.3
Horizontal recoil
16.4
Vertical gun kick
32.7
Horizontal gun kick
1.5
ADS idle sway
0.40°
ADS gun bob
0.09°

Range and bullets

Bullet velocity
775 m/s
Damage rangeAn index: 100 is the weapon's own damage range, and attachments scale it
100%
Bullet penetration
13.0 in

Hip fire and flinch

Hip idle sway
1.31°
Hip gun bob
1.09°
Hip turn sway
20.9°
Flinch received
0.18x

Fire rate and ammo

Fire rateFrom Activision
375 rpm
Magazine sizeFrom Activision
30 rounds
Total roundsRounds carried in total, the loaded magazine includedFrom Activision
120 rounds
Headshot multiplier
1.30x

Attachments change these values. The class builder shows the result for a whole build.

Hyeon Burst attachments

The Hyeon Burst accepts 9 attachment types. Gunsmith allows up to 5 standard attachments on one weapon, plus its Apex Attachment.

Community-reported61 attachments listed by community sites, by type below; community-reported and unverified.

How this is sourced

Activision has not published the names or effects of the individual attachments, so there is no official list to check these against. They are grouped by type in Gunsmith order. Where CODMunity lists a stat change for an attachment on this weapon, the biggest changes are printed under it as a percentage of the base value; "No stat change reported" means the source lists none, not that there is none. Where the names come from.

Optic (23)9 with a reported stat change
  • Bruen THRM-60 Optic2.1x thermal opticNo stat change reported
  • Corio Bisect4x Scope
    • ADS speed +12% (worse)
    • ADS movement speed −10% (worse)
    • Vertical recoil −10% (better)
    • Horizontal recoil −10% (better)
  • Cronen R8084x Scope
    • ADS speed +12% (worse)
    • Vertical recoil −10% (better)
    • Horizontal recoil −10% (better)
    • ADS movement speed −7% (worse)
  • FJX 708 PROReflexNo stat change reported
  • GL K2304x Scope
    • ADS speed +12% (worse)
    • ADS movement speed −7% (worse)
  • IOTA-DMini reflex opticNo stat change reported
  • KV Corsac HoloHoloNo stat change reported
  • Locus PX3 CantedRifle Scope
    • Vertical recoil −30% (better)
    • Horizontal recoil −30% (better)
    • ADS speed +12% (worse)
    • ADS movement speed −10% (worse)
  • RVX9 ThermoRifle Scope
    • Vertical recoil −30% (better)
    • Horizontal recoil −30% (better)
    • ADS speed +17% (worse)
    • ADS movement speed −15% (worse)
  • Schlager 7xRifle ScopeNo stat change reported
  • Schlager Dogfight GIRifle Scope
    • Vertical recoil −30% (better)
    • Horizontal recoil −30% (better)
    • ADS speed +17% (worse)
    • ADS movement speed −15% (worse)
  • Schlager Night View Pro4x Scope
    • ADS speed +12% (worse)
    • ADS movement speed −10% (worse)
    • Vertical recoil −10% (better)
    • Horizontal recoil −10% (better)
  • Slimline EliteMini ReflexNo stat change reported
  • SZ Echelon HoloHoloNo stat change reported
  • SZ Helios HoloHoloNo stat change reported
  • SZ Lonewolf Flip4x Scope
    • ADS speed +12% (worse)
    • Vertical recoil −10% (better)
    • Horizontal recoil −10% (better)
    • ADS movement speed −7% (worse)
  • SZ Lonewolf HoloHoloNo stat change reported
  • SZ Micro D-3ReflexNo stat change reported
  • SZ Prima-4 DotLow-profile dot opticNo stat change reported
  • SZ SRE-7ReflexNo stat change reported
  • VLK Rize-40Rifle Scope
    • ADS speed +17% (worse)
    • ADS movement speed −15% (worse)
    • Vertical recoil −10% (better)
    • Horizontal recoil −10% (better)
  • VLK TrimmerReflexNo stat change reported
  • ZLR Type CMini ReflexNo stat change reported

Muzzle (8)8 with a reported stat change
  • B16 HelicalBreacher
    • Damage range +2% (better)
  • Corvus LVL-40Horizontal Comp
    • Horizontal recoil −25% (better)
    • ADS speed +4% (worse)
  • FSS IS40Light Silencer
    • Damage range −9.5% (worse)
  • FSS IS300Suppressor
    • Pro: Sound suppression
    • Pro: Muzzle velocity
    • Pro: Damage range
    • Pro: ADS recoil control
    • Con: Aiming and movement speed
    • Con: Gun bob and idle sway while aiming
    • Damage range +18% (better)
    • Bullet velocity +16% (better)
    • ADS speed +11% (worse)
    • Vertical recoil −6% (better)
  • FTAC DominionRecoil-reducing muzzle device
    • Pro: Horizontal recoil
    • Pro: Vertical recoil
    • Vertical recoil −8% (better)
    • Horizontal recoil −8% (better)
    • ADS speed +4% (worse)
  • TZL-110 V1Flash Hider
    • Vertical recoil −3% (better)
    • Horizontal recoil −3% (better)
  • XRK Mil-Tac SuppressorSuppressor
    • Pro: Sound suppression
    • Pro: Firing stability
    • Con: Aim-down-sight speed
    • ADS speed +6% (worse)
  • ZLR Reverb90Vertical Comp
    • Vertical recoil −13% (better)
    • ADS speed +4% (worse)

Barrel (4)4 with a reported stat change
  • Mugi Hwando-Z3 521mmLight Barrel
    • ADS movement speed +8% (better)
    • Vertical recoil +7% (worse)
    • Horizontal recoil +7% (worse)
    • ADS speed −6% (better)
  • Mugi Ingoem 559mmHeavy Barrel
    • Vertical recoil −14% (better)
    • Horizontal recoil −14% (better)
    • ADS speed +11% (worse)
    • Bullet velocity +8% (better)
  • Mugi Nullifier 482mmShort Barrel
    • Bullet velocity −12% (worse)
    • Damage range −11% (worse)
    • Vertical recoil +10% (worse)
    • Horizontal recoil +10% (worse)
  • Mugi Seungri-0P 609mmLong Barrel
    • Damage range +27% (better)
    • Bullet velocity +20% (better)
    • ADS speed +9% (worse)
    • Sprint to fire speed +7% (worse)

Underbarrel (6)4 with a reported stat change
  • FSS Fireline GripAngled grip
    • Pro: Firing stability
    • Con: Aiming speed
    • Vertical recoil −9% (better)
    • Horizontal recoil −9% (better)
    • ADS speed +7% (worse)
    • Sprint to fire speed +7% (worse)
  • FSS TAC90 GripAngled Short Grip
    • ADS idle sway −50% (better)
    • ADS gun bob −50% (better)
  • GW Domi-9Vertical Short Grip
    • Hip idle sway −50% (better)
    • Hip gun bob −40% (better)
  • MIRE-50 Tac GripVertical Grip
    • ADS speed +6% (worse)
    • Movement speed +4% (better)
  • Miri 40mmUnderbarrel LauncherNo stat change reported
  • TV JudicatorUnderbarrel ShotgunNo stat change reported

Magazine (2)2 with a reported stat change
  • 40 Round Mag
    • Magazine size +33% (better)
    • Reload time +14% (worse)
    • ADS speed +3% (worse)
    • ADS movement speed −2% (worse)
  • 60 Round Drum Mag60-round drum magazine
    • Magazine size +100% (better)
    • Reload time +17% (worse)
    • ADS speed +6% (worse)
    • ADS movement speed −4% (worse)

Rear Grip (3)3 with a reported stat change
  • HYN-MeipeulAim Grip
    • Flinch received −50% (better)
    • ADS idle sway −10% (better)
    • Hip idle sway −5% (better)
  • Mugi UN-R5 GripTactical Grip
    • ADS speed −5% (better)
    • Vertical recoil +3% (worse)
    • Horizontal recoil +3% (worse)
  • X-Vector 799 GripSkeleton Grip
    • ADS speed −9% (better)
    • Sprint to fire speed −8% (better)

Stock (3)3 with a reported stat change
  • HVY-80 StockpadHeavy Stock
    • ADS movement speed −3% (worse)
  • Hyeon Stockpad TacTactical Stock
    • ADS speed −8% (better)
    • Vertical recoil +4% (worse)
    • Horizontal recoil +4% (worse)
  • Mugi BAL-202 StockLight Stock
    • ADS movement speed +13% (better)
    • Movement speed +4% (better)
    • Sprint speed +2% (better)

Laser (7)7 with a reported stat change
  • Bruen 22-LPWBright Hip Laser
    • Sprint to fire speed −17% (better)
  • Corio 4DV-3Flashlight
    • Movement speed +2% (better)
    • ADS movement speed +2% (better)
  • Corio ODSPR+Canted Laser
    • ADS gun bob +30% (worse)
  • Expedite Intra-5bCanted Laser
    • ADS gun bob +30% (worse)
    • Hip gun bob −15% (better)
  • SA LAZ-500Dim ADS Laser
    • ADS speed −4% (better)
  • STOVL IRX-6Dim Hip Laser
    • Hip idle sway −7% (better)
    • Hip gun bob −7% (better)
  • SZ Gen.6 PEQBright ADS Laser
    • Sprint to fire speed −17% (better)
    • ADS speed −8% (better)

Ammunition (5)4 with a reported stat change
  • 6.8x43mm Armor Piercing
    • Bullet penetration +50% (better)
  • 6.8x43mm Frangible
    • Bullet penetration −31% (worse)
  • 6.8x43mm High Velocity
    • Bullet velocity +20% (better)
  • 6.8x43mm Hollow PointNo stat change reported
  • 6.8x43mm Overpressured
    • Bullet penetration −30% (worse)

Hyeon Hyperburst Apex Attachment

Overclocked receiver: a very fast three-round burst followed by slow, controlled automatic fire.

Unlock
Fully level the Hyeon Burst: 68 weapon levels.
Blocks
No attachment types. Activision lists none.
Reported stat changes
  • Horizontal gun kick +220% (worse)
  • Vertical gun kick −60% (better)
  • Horizontal recoil +27% (worse)
  • Fire rate +23% (better)
  • Vertical recoil −3% (better)

Community-reportedCODMunity; unverified.

Slot use
None. Apex Attachments are equipped outside the standard attachment slots.

See all 28 Apex Attachments

How to unlock the Hyeon Burst

Reach Player Level 21. Player Level runs from 1 to 55. XP from Multiplayer and DMZ counts toward it, and Warzone XP does from Season 1. The Hyeon Hyperburst needs a separate grind: level the Hyeon Burst itself through all 68 weapon levels.

Frequently asked questions

What is the Hyeon Burst's fire rate in MW4?

375 RPM. That ranks #8 of 8 assault rifles by fire rate. The magazine holds 30 rounds and the weapon carries 90 in reserve.

When do you unlock the Hyeon Burst in MW4?

At Player Level 21.

What does the Hyeon Hyperburst Apex Attachment do?

Overclocked receiver: a very fast three-round burst followed by slow, controlled automatic fire. Activision lists no blocked attachment types for it. It unlocks by fully levelling the Hyeon Burst (68 weapon levels).

How many attachments can the Hyeon Burst use?

Up to 5 standard attachments, chosen from 9 attachment types (Optic, Muzzle, Barrel, Underbarrel, Magazine, Rear Grip, Stock, Laser, and Ammunition), plus the Hyeon Hyperburst Apex Attachment, which does not use one of the 5 slots.

Which attachments are reported for the Hyeon Burst?

Activision has not published the attachment list, and it says there are more than 500. Community sites report 61 attachments for the Hyeon Burst, community-reported and unverified: 23 optic, 8 muzzle, 4 barrel, 6 underbarrel, 2 magazine, 3 rear grip, 3 stock, 7 laser, and 5 ammunition. The attachments section of this page lists them by type.

Other assault rifles

Sources: Ready for Launch: All Modern Warfare 4 Operators, Weapons, Equipment, and Multiplayer Create-a-Class Features (October 19, 2026); Ready for Launch: Modern Warfare 4 Progression and Prestige (October 19, 2026). Attachment names, pictures and notes are community-reported; see Data and assumptions. Updated .