Source-checkedQuality of life & UI

ModernFirearmsSystem 42.21 (SP/MP)

by 布偶旧猫 · for Project Zomboid

Thanks to author Skorpion for creating and revising the firearm sound effects for this mod. ISeeThem is not a required mod, it can be used when playing in 3D mode. # MOD Notes for Gameplay 1. **Place…

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20d agoLast updated
Steam WorkshopSource

About ModernFirearmsSystem 42.21 (SP/MP)

From Steam Workshop

Thanks to author Skorpion for creating and revising the firearm sound effects for this mod. ISeeThem is not a required mod, it can be used when playing in 3D mode. # MOD Notes for Gameplay 1. **Place…

Thanks to author Skorpion for creating and revising the firearm sound effects for this mod. ISeeThem is not a required mod, it can be used when playing in 3D mode.

# MOD Notes for Gameplay 1. **Place this MOD at the bottom of load order, mandatory!** Prevents most mod conflicts. Multiplayer compatible. 2. Hold a firearm and press <T> to open inspection UI. Left-click attachment slot to equip parts; double left-click to remove. Attachments must be inside main inventory to install. 3. Firearms, attachments and magazines can be dismantled into components. Use components to craft magazines or repair kits. 4. Guns and attachments spawn inside unexplored military crates, valid for existing save files. 5. Incompatible with all other mods that add suppressors; no required dependency mods. 6. If bugs persist after update, unsubscribe then resubscribe the mod. 7. Advanced Warfare Framework is for mod developers only; regular players do not need it. 8. Current content: 124 firearms & 145 gun attachments, all custom-commissioned by sponsors.

9. Do not use Gunwork Framework together, it is conflicting with MFS and will cause the magazine to be unusable

**Update Notes (Build B42.20)** • New ammo reloading system, all recipes must be collected and unlocked in-game. • Added new firearms and matching weapon attachments. • Complete UI overhaul with 5 new functional buttons: fine-tune attachment position, repair weapons, pack ammunition, unpack ammo boxes, and open trade interface. • Support direct attachment installation from inventory or nearby surroundings. • Added new weapons: underbarrel flamethrower and direct-fire grenade sniper rifle. • Expanded attachment attributes, adding critical hit chance and critical damage bonuses. • Added new items: lightweight backpack and automatic reloading device. • New configurable options in ESC Mod Settings: toggle attachment display for a cleaner UI and adjust gunshot sound volume. • Fixed audio issues: missing gunshot sounds and duplicate gunshot sound effects. • Fully compatible with game version B42.20.

Need zombie to drop gun/ammo ?

Thank you for your support. htt ps://afdian.c om/a/lsb543837851

Workshop ID: 3633421539 Mod ID: BackpackSystemB42 Mod ID: BladesmithSystemB42 Mod ID: ModernFirearmsSystem Mod ID: ItemSpawnBlocker Mod ID: ModernFirearmsSystemDamageSandbox

Highlights

From source data

Footprint

Rated a light load on a server.

Last update

Its author last shipped an update 20d ago.

ModernFirearmsSystem 42.21 (SP/MP) on Nxeon

From our catalogue
One-click install
Supported on Nxeon Project Zomboid servers. We download it from Steam Workshop, place it, and restart the server.
Server load
light
Smallest plan we suggest
Project Zomboid — 6 GB (6 GB RAM). This follows our own load rating above, not a benchmark.
Latest build
2026-10-14, released 2026-10-14

Game versions by loader

LoaderGame versionsNewest
Workshop

From 4 recorded builds of ModernFirearmsSystem 42.21 (SP/MP).

Recent builds

BuildReleasedGame versionsLoaders
2026-10-142026-10-14n/aWorkshop
2026-10-122026-10-12n/aWorkshop
2026-10-092026-10-09n/aWorkshop
2026-09-272026-09-27n/aWorkshop

Dependencies

Declared by the newest build that lists any. Required ones are installed with it on one-click installs.

Run ModernFirearmsSystem 42.21 (SP/MP) on a Project Zomboid server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog
Listed on Steam Workshop as “QoL”

Quality of life & UI

Small conveniences, tweaks and interface improvements players notice straight away.

Compatibility

Game
Project Zomboid

Verified at the source

  • ✓Steam WorkshopOfficial listing, checked 2026-11-01Open ↗
  • ✓Author布偶旧猫, as published on Steam Workshop
  • ✓LicenseNot published by the sourceFree

ModernFirearmsSystem 42.21 (SP/MP), answered

Generated from the mod’s own source data.

Is it free?

Yes. ModernFirearmsSystem 42.21 (SP/MP) is free to download from Steam Workshop.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run ModernFirearmsSystem 42.21 (SP/MP) on a Project Zomboid server.

Deploy in about a minute from $9.00 a month, then add ModernFirearmsSystem 42.21 (SP/MP) in one click.