ArmsLib
by mumu17
With TaCZ installed, ArmsLib lets a server owner change how much damage a bullet deals, and it gives developers shared code for gun mods.
What it does
ArmsLib is a Forge library for 1.20.1 that provides common code used by mumu17's mods. Its main integration targets TaCZ, and it can run extra hooks for optional mods whenever a bullet leaves a gun. Timeless and Classics Zero and ArsCurios are both required. The mod is released under the MIT License and its source code is public.
The library has no gameplay value on its own. It becomes active only when another mod uses it to hook into bullet behavior. Client and server both need it, because the effects it adjusts happen on the server while the client displays the weapons. The first release, 2.0.0, was published on 2026-01-31 and is the only one for Forge 1.20.1.
Key features
Bullet damage adjustment
Damage that TaCZ bullets deal can be modified through the library's hooks.
Extended bullet reference
Bullets fired are tracked by reference so that integrating mods can extend their inventory data.
Custom integration hooks
Optional mods can run their own integration code whenever a bullet is fired.
Shared library code
Common code that mumu17's mods rely on is packaged here, so each mod does not need its own copy.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Who it’s for: Server owners who want to tune TaCZ bullet damage, and developers who write gun or equipment mods for Forge 1.20.1 and need shared bullet hooks.
How it compares
TaCZ Tacz Bullet Improvement is a Forge mod for 1.20 – 1.20.1 released under All rights reserved, so its source is not public. TACZ Bullet Proof Enchant Add-on is open source under the MIT License and runs on Fabric and Forge for 1.20.1. ArmsLib targets Forge 1.20.1 only, is open source under the MIT License, and like both alternatives runs on client and server.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| ArmsLib | Forge | 1.20.1 | Client and server | 2026-01-31 |
| [TaCZ] Tacz Bullet Improvement | Forge | 1.20 – 1.20.1 | Client and server | 2026-09-05 |
| TACZ Bullet Proof Enchant Add-on | Fabric and Forge | 1.20.1 | Client and server | 2026-07-16 |
Questions
Does ArmsLib need TaCZ to work?
Does ArmsLib have to be installed on the server?
Which loaders and game versions does ArmsLib support?
In the catalog
ArmsLib is one of 3,514 Library mods on ModsFinder, and one of 1,576 Library mods for Forge. 34,764 mods support Minecraft 1.20.1.
More from mumu17
Similar mods
What the author says
ArmsLib is a library mod which adds shared common code that mumu17's mods use, this mod provides nothing of value without another mod activating it or using it. This mod is primarily intended for integration with TaCZ.
Official listing
- Modrinth page
- modrinth.com/mod/armslib
- Owner
- mumu17
- Published
- 2026-01-31
- Updated on Modrinth
- 2026-01-31
- Facts verified
- 2026-10-15