- Firing ADS Movement Speed penalty reduced from 30% to 25%.
Weapons / LMG
MK.78
1 · PICK YOUR STYLE
2 · SET YOUR WEAPON LEVEL
All-rounder at LV 50: 5 of 5 final
Level
LV 50
150
Unlocked 49/49
Complete
SC // WEAPON INTEL
GUNSMITH · LV 50
LOADOUT BUILDER
Your build · 5/5
S100/100 · Excellent100% match with our All-rounder build
MuzzleGreaves A-762LV 6
Barrel20" Mach-78 BarrelLV 3
UnderbarrelEnhance-32 HandstopLV 2
Rear GripTrailblaze GripLV 10
MagazineSwift Feed Fast BeltLV 11
Laser
5 of 5 unlocked at LV 50
LV 72mw Adaptive Tactical LaserTactical laser: faster aiming in tactical stance (visible laser). (Tactical Laser)Unlocked
LV 14Convergence Box LaserSteady laser: steadier aim while aiming down sights. (Steady Aim Laser)Unlocked
LV 335mW Lockstep LaserSteady laser: steadier aim while aiming down sights. (Strelok Laser)Unlocked
LV 411mW Instinct Laser ArrayHandling laser: faster aiming and sprint-to-fire (visible laser). (Handling Laser)Unlocked
LV 493mW Motion Strike LaserSteady laser: steadier aim while aiming down sights. (Stable Range Laser)Unlocked
PERFORMANCE
Damage range
Latest balance changes
Full history (5)- Maximum Damage Range: less damage
- Medium Damage Range: less damage
Attachments tuned:MFS Heatshield Belt Fed
Source: official patch notes ↗Alternatives in this class
All weapons
MK.78 FAQ
What is the best MK.78 build?
We have ready builds for the MK.78: mid range, prestige, all-rounder, long range. Pick a style and your weapon level in the lab above and we equip the right parts for that level, with stand-ins until the parts unlock.
What is the MK.78 max level?
The MK.78 maxes out at weapon level 50. After that you can enter weapon prestige and unlock its prestige attachment.
How many attachments does the MK.78 have?
We list 55 compatible attachments for the MK.78 across 9 slots, each with its unlock level and what it does.
What is the MK.78 prestige attachment?
The prestige attachment is the MFS Heatshield Belt Fed. It unlocks after you reach max level and enter weapon prestige.
Was the MK.78 changed recently?
The last official change to the MK.78 was in Season 03 (2026-03-31). The patch notes have changed it 5 times since launch — all listed in the History tab.
What are the alternatives to the MK.78?
In the same class: XM325, Mammoth, Sokol 545. Each has its own page with level-by-level builds.
58 LIVE weapons does not mean every combat stat is complete. Documented verified coverage: scalar damage 29/58, model-aware damage 33/58, legacy scalar RPM/TTK 4/58. Unverified values are labeled and never shown as zero.
COMBAT SNAPSHOT
Combat data
Black Ops 7 Multiplayer numbers when documented — never silently replaced by Warzone. · Supported
HEAD
Not verified
BODY
31 · 4 STK
RPM
Not verified
TTK (close)
Not verified
Magazine
75
RANGE
0–40.6 m
USEFUL KILL COMBOS4B KILL1H+3B KILL2H+2B KILL
| RANGE | DMG | STK | TTK |
|---|---|---|---|
| 0–40.6m | 31 | 4 | — |
| 40.7–61m | 24 | 5 | — |
| 61m+ | 23 | 5 | — |
Build for my level
Enter your MK.78 level and pick a playstyle to get a useful build.
25
Playstyle
Close = short fights · Balanced = general · Long = longer range
Best available now
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
Optic
Greaves AccuSpot 3x
Optic
AVAILABLE NOW
Optic: a sight for clearer aiming.
Exact image unavailable — Underbarrel
SPECIAL CODE category presentation — not the exact attachment geometry.
Underbarrel
Enhance-32 Handstop
Underbarrel
AVAILABLE NOW
Steady foregrip: steadier aim and less sway.
Exact image unavailable — Barrel
SPECIAL CODE category presentation — not the exact attachment geometry.
Barrel
20" Mach-78 Barrel
Barrel
AVAILABLE NOW
Velocity barrel: faster bullets for long fights.
Exact image unavailable — Muzzle
SPECIAL CODE category presentation — not the exact attachment geometry.
Muzzle
Bowen Modulator 7.62
Muzzle
AVAILABLE NOW
Muzzle brake: less gun kick and vertical recoil.
Exact image unavailable — Magazine
SPECIAL CODE category presentation — not the exact attachment geometry.
Magazine
Swift Feed Fast Belt
Magazine
AVAILABLE NOW
Fast mag: faster reload.
Next useful unlock
Level 26 → PrismaTech Turbo 4x
Max-level build
Exact image unavailable — Barrel
SPECIAL CODE category presentation — not the exact attachment geometry.
Barrel
20" Mach-78 Barrel
Barrel
AVAILABLE NOW
Velocity barrel: faster bullets for long fights.
Exact image unavailable — Underbarrel
SPECIAL CODE category presentation — not the exact attachment geometry.
Underbarrel
Enhance-32 Handstop
Underbarrel
AVAILABLE NOW
Steady foregrip: steadier aim and less sway.
Exact image unavailable — Muzzle
SPECIAL CODE category presentation — not the exact attachment geometry.
Muzzle
Bowen Modulator 7.62
Muzzle
AVAILABLE NOW
Muzzle brake: less gun kick and vertical recoil.
Exact image unavailable — Rear Grip
SPECIAL CODE category presentation — not the exact attachment geometry.
Rear Grip
LTI Precision Grip
Rear Grip
Needs Weapon Level
Stabilization grip: less horizontal recoil, slightly slower aiming.
Exact image unavailable — Fire Mods
SPECIAL CODE category presentation — not the exact attachment geometry.
Fire Mods
7.62 NATO Overpressured
Fire Mods
AVAILABLE NOW
High-velocity ammo: faster bullets and more range.
Prestige build
Exact image unavailable — Magazine
SPECIAL CODE category presentation — not the exact attachment geometry.
Magazine
MFS Heatshield Belt Fed
Magazine
Needs Weapon Prestige
Takes longer to overheat and improves mobility in addition to removing movement penalties when…
BUILDS
Best builds
Exact image unavailable — Barrel
SPECIAL CODE category presentation — not the exact attachment geometry.
20" Mach-78 BarrelBarrel
Exact image unavailable — Muzzle
SPECIAL CODE category presentation — not the exact attachment geometry.
Bowen Modulator 7.62Muzzle
Exact image unavailable — Rear Grip
SPECIAL CODE category presentation — not the exact attachment geometry.
LTI Precision GripRear Grip
Exact image unavailable — Underbarrel
SPECIAL CODE category presentation — not the exact attachment geometry.
Enhance-32 HandstopUnderbarrel
Exact image unavailable — Fire Mods
SPECIAL CODE category presentation — not the exact attachment geometry.
7.62 NATO OverpressuredFire Mods
Balanced
MK.78 Mid Range
Built by SPECIAL CODE from attachment archetypes (close: handling/mobility/hip-fire; mid: range…
Exact image unavailable — Magazine
SPECIAL CODE category presentation — not the exact attachment geometry.
MFS Heatshield Belt FedMagazine
Prestige
Prestige
Official prestige attachment.
Exact image unavailable — Muzzle
SPECIAL CODE category presentation — not the exact attachment geometry.
Greaves A-762Muzzle
Exact image unavailable — Underbarrel
SPECIAL CODE category presentation — not the exact attachment geometry.
Enhance-32 HandstopUnderbarrel
Exact image unavailable — Barrel
SPECIAL CODE category presentation — not the exact attachment geometry.
20" Mach-78 BarrelBarrel
Exact image unavailable — Rear Grip
SPECIAL CODE category presentation — not the exact attachment geometry.
Trailblaze GripRear Grip
Exact image unavailable — Magazine
SPECIAL CODE category presentation — not the exact attachment geometry.
Swift Feed Fast BeltMagazine
ALL_ROUNDER
Recommended control path
Editor path from web-supported unlock track (early slot representatives).
Exact image unavailable — Magazine
SPECIAL CODE category presentation — not the exact attachment geometry.
MFS Heatshield Belt FedMagazine
Long
MK.78 prestige launch path
Editor recommended because this is the officially named Prestige Attachment for MK.78.
UNLOCK TRACK
Weapon attachment progression
Max Level 50
5
2
Enhance-32 Handstop
Underbarrel
AVAILABLE
Exact image unavailable — Underbarrel
SPECIAL CODE category presentation — not the exact attachment geometry.
Enhance-32 HandstopUnderbarrel
3
20" Mach-78 Barrel
Barrel
AVAILABLE
Exact image unavailable — Barrel
SPECIAL CODE category presentation — not the exact attachment geometry.
20" Mach-78 BarrelBarrel
4
7.62 NATO Overpressured
Fire Mods
AVAILABLE
Exact image unavailable — Fire Mods
SPECIAL CODE category presentation — not the exact attachment geometry.
7.62 NATO OverpressuredFire Mods
5
VAS LED
Optic
AVAILABLE
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
VAS LEDOptic
6
Greaves A-762
Muzzle
NEXT
Exact image unavailable — Muzzle
SPECIAL CODE category presentation — not the exact attachment geometry.
Greaves A-762Muzzle
7
2mw Adaptive Tactical Laser
Laser
LOCKED
Exact image unavailable — Laser
SPECIAL CODE category presentation — not the exact attachment geometry.
2mw Adaptive Tactical LaserLaser
8
Parallel Foregrip
Underbarrel
LOCKED
Exact image unavailable — Underbarrel
SPECIAL CODE category presentation — not the exact attachment geometry.
Parallel ForegripUnderbarrel
9
LTI Reflex
Optic
LOCKED
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
LTI ReflexOptic
10
Trailblaze Grip
Rear Grip
LOCKED
Exact image unavailable — Rear Grip
SPECIAL CODE category presentation — not the exact attachment geometry.
Trailblaze GripRear Grip
11
Swift Feed Fast Belt
Magazine
LOCKED
Exact image unavailable — Magazine
SPECIAL CODE category presentation — not the exact attachment geometry.
Swift Feed Fast BeltMagazine
12
Shock Shield Stock
Stock
LOCKED
Exact image unavailable — Stock
SPECIAL CODE category presentation — not the exact attachment geometry.
Shock Shield StockStock
13
EMT3 Holo Mk.2
Optic
LOCKED
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
EMT3 Holo Mk.2Optic
14
Convergence Box Laser
Laser
LOCKED
Exact image unavailable — Laser
SPECIAL CODE category presentation — not the exact attachment geometry.
Convergence Box LaserLaser
15
17" Bowen Moon Barrel
Barrel
LOCKED
Exact image unavailable — Barrel
SPECIAL CODE category presentation — not the exact attachment geometry.
17" Bowen Moon BarrelBarrel
16
Bowen Modulator 7.62
Muzzle
LOCKED
Exact image unavailable — Muzzle
SPECIAL CODE category presentation — not the exact attachment geometry.
Bowen Modulator 7.62Muzzle
17
Kepler T-Range Holo
Optic
LOCKED
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
Kepler T-Range HoloOptic
18
Bolt Carrier Group
Fire Mods
LOCKED
Exact image unavailable — Fire Mods
SPECIAL CODE category presentation — not the exact attachment geometry.
Bolt Carrier GroupFire Mods
19
Ironhold Angled Grip
Underbarrel
LOCKED
Exact image unavailable — Underbarrel
SPECIAL CODE category presentation — not the exact attachment geometry.
Ironhold Angled GripUnderbarrel
20
Charon Light Stock
Stock
LOCKED
Exact image unavailable — Stock
SPECIAL CODE category presentation — not the exact attachment geometry.
Charon Light StockStock
21
15" Skylance Barrel
Barrel
LOCKED
Exact image unavailable — Barrel
SPECIAL CODE category presentation — not the exact attachment geometry.
15" Skylance BarrelBarrel
22
Greaves AccuSpot 3x
Optic
LOCKED
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
Greaves AccuSpot 3xOptic
23
Bowen Thrust Grip
Rear Grip
LOCKED
Exact image unavailable — Rear Grip
SPECIAL CODE category presentation — not the exact attachment geometry.
Bowen Thrust GripRear Grip
24
Bowen Sentry Foregrip
Underbarrel
LOCKED
Exact image unavailable — Underbarrel
SPECIAL CODE category presentation — not the exact attachment geometry.
Bowen Sentry ForegripUnderbarrel
25
Gravepack Extended Belt
Magazine
LOCKED
Exact image unavailable — Magazine
SPECIAL CODE category presentation — not the exact attachment geometry.
Gravepack Extended BeltMagazine
26
PrismaTech Turbo 4x
Optic
LOCKED
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
PrismaTech Turbo 4xOptic
27
18.5" Titan Hybrid Barrel
Barrel
LOCKED
Exact image unavailable — Barrel
SPECIAL CODE category presentation — not the exact attachment geometry.
18.5" Titan Hybrid BarrelBarrel
28
Scatter Skeletal Stock
Stock
LOCKED
Exact image unavailable — Stock
SPECIAL CODE category presentation — not the exact attachment geometry.
Scatter Skeletal StockStock
29
RL-7.62 Compensator
Muzzle
LOCKED
Exact image unavailable — Muzzle
SPECIAL CODE category presentation — not the exact attachment geometry.
RL-7.62 CompensatorMuzzle
30
Quickstep Foregrip
Underbarrel
LOCKED
Exact image unavailable — Underbarrel
SPECIAL CODE category presentation — not the exact attachment geometry.
Quickstep ForegripUnderbarrel
31
Greaves Ultra Zoom
Optic
LOCKED
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
Greaves Ultra ZoomOptic
32
LTI Precision Grip
Rear Grip
LOCKED
Exact image unavailable — Rear Grip
SPECIAL CODE category presentation — not the exact attachment geometry.
LTI Precision GripRear Grip
33
5mW Lockstep Laser
Laser
LOCKED
Exact image unavailable — Laser
SPECIAL CODE category presentation — not the exact attachment geometry.
5mW Lockstep LaserLaser
34
Accelerated Recoil System
Fire Mods
LOCKED
Exact image unavailable — Fire Mods
SPECIAL CODE category presentation — not the exact attachment geometry.
Accelerated Recoil SystemFire Mods
35
Monolithic Suppressor
Muzzle
LOCKED
Exact image unavailable — Muzzle
SPECIAL CODE category presentation — not the exact attachment geometry.
Monolithic SuppressorMuzzle
35
VAS Duo Hybrid Sight
Optic
LOCKED
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
VAS Duo Hybrid SightOptic
36
22" Impulse HB-762 Barrel
Barrel
LOCKED
Exact image unavailable — Barrel
SPECIAL CODE category presentation — not the exact attachment geometry.
22" Impulse HB-762 BarrelBarrel
37
Titan-R 7.62 Compensator
Muzzle
LOCKED
Exact image unavailable — Muzzle
SPECIAL CODE category presentation — not the exact attachment geometry.
Titan-R 7.62 CompensatorMuzzle
38
Bowen Light Stock
Stock
LOCKED
Exact image unavailable — Stock
SPECIAL CODE category presentation — not the exact attachment geometry.
Bowen Light StockStock
39
Fleet-G2 Grip
Rear Grip
LOCKED
Exact image unavailable — Rear Grip
SPECIAL CODE category presentation — not the exact attachment geometry.
Fleet-G2 GripRear Grip
40
LTI Target Finder v.2
Optic
LOCKED
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
LTI Target Finder v.2Optic
41
1mW Instinct Laser Array
Laser
LOCKED
Exact image unavailable — Laser
SPECIAL CODE category presentation — not the exact attachment geometry.
1mW Instinct Laser ArrayLaser
42
Payload Belt Extension
Magazine
LOCKED
Exact image unavailable — Magazine
SPECIAL CODE category presentation — not the exact attachment geometry.
Payload Belt ExtensionMagazine
43
7.62 NATO FMJ
Fire Mods
LOCKED
Exact image unavailable — Fire Mods
SPECIAL CODE category presentation — not the exact attachment geometry.
7.62 NATO FMJFire Mods
44
Circuit-Z Rangefinder
Optic
LOCKED
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
Circuit-Z RangefinderOptic
46
EAM Steady-90 Grip
Underbarrel
LOCKED
Exact image unavailable — Underbarrel
SPECIAL CODE category presentation — not the exact attachment geometry.
EAM Steady-90 GripUnderbarrel
47
SwiftGuard Stock
Stock
LOCKED
Exact image unavailable — Stock
SPECIAL CODE category presentation — not the exact attachment geometry.
SwiftGuard StockStock
48
Bowen X-25 IR
Optic
LOCKED
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
Bowen X-25 IROptic
49
3mW Motion Strike Laser
Laser
LOCKED
Exact image unavailable — Laser
SPECIAL CODE category presentation — not the exact attachment geometry.
3mW Motion Strike LaserLaser
50
Hades Looper-X Grip
Rear Grip
LOCKED
Exact image unavailable — Rear Grip
SPECIAL CODE category presentation — not the exact attachment geometry.
Hades Looper-X GripRear Grip
Lv50 · MAX
MAX LEVEL → PRESTIGE
After Max Level you enter Weapon Prestige. Progression attachments relock except Optics.
Prestige attachment: MFS Heatshield Belt Fed
mk-78
WEAPON PRESTIGE
What happens after Max Level?
Entering Weapon Prestige returns Weapon Level to 1. Progression attachments relock. Optics stay unlocked. Camos and customization stay.
MAX LEVEL 50
Current Weapon Level unknown
Manual tracking only.
Next useful attachment
Shown from a verified Weapon-Level unlock.
Max Weapon Level 50
Only shown when an official weapon page states Max Weapon Level.
Weapon Prestige 1
Prestige 1: weapon-specific Prestige Attachment, first Permanent Attachment Unlock, Prestige Camo, Prestige Build.
Weapon Prestige 2
Prestige 2: second Permanent Attachment Unlock, Prestige 2 Camo, and the weapon-specific reward where officially named.
Prestige Master
Prestige Master does not reset again. Progression attachments stay permanently unlocked. The cap expands to 250 with Master camos at supported milestone levels.
Prestige Max
Prestige Max is the final named milestone where a Prestige Max camo is officially listed.
Prestige attachment: MFS Heatshield Belt Fed