Fel's Smart Arsenal
Fel's Smart Arsenal adds automatic turrets for base and structure defense, powered by batteries and controlled from a crouching right-click menu.
What it does
Turrets draw power from batteries, so a base needs a supply before its defenses can fire. A player crouches and right-clicks a turret to switch it on or off. By default the turrets target only monster-type entities, and the behavior can be changed by editing the turret configuration. Damaged turrets are repaired with a wrench.
The mod adds several turret models: the AMG26 A-Type Machine Gun Model 26, the AC26 and AC25 Automatic Cannon models, and the ATC24 Anti-Tank Cannon Model 24. Each turret accepts a SARA's module with its own chips inside the module. The mod requires GeckoLib, and it runs on client and server, so the server and every player need it. Builds are published for NeoForge 1.21.1 only, with 0.0.5 as the latest file from 2026-03-02. The code is not open source; it is released under All rights reserved. The mod is marked as beta, and some parts are unpolished or unfinished.
Key features
Automatic turrets
Turrets defend a base or structure without manual aiming, once they receive power.
Crouch-to-toggle control
Crouching and right-clicking a turret switches it on or off.
Turret models
Four weapon models are included: a machine gun and three cannon types with different roles.
SARA's module chips
Modules with their own chips can be inserted to adjust how a turret behaves.
Wrench repair
A damaged turret is restored with a wrench, so defenses can be maintained after fights.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Base defense
Turrets placed around a base guard it against hostile mobs while the owner is away.
Structure defense
Turrets can be set around a structure to protect it from monsters during long builds or expeditions.
Who it’s for: Players who want automated defenses for their bases on NeoForge 1.21.1, and server owners who want turrets on a shared world. The mod is in beta, so players who prefer finished content may want to wait for a later release.
How it compares
Krip Turrets is a NeoForge and Forge option for 1.19.2 – 1.21.1, also running client and server and released under All rights reserved. Defense Turrets covers 1.20.1 – 1.21.1 on Forge and NeoForge under the MIT License. Lunar Arsenal is a NeoForge mod for 1.21.1 only, and it is server required with client optional, so players can join without it, unlike this mod, which needs the server and every player.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Fel's Smart Arsenal | NeoForge | 1.21.1 | Client and server | 2026-03-02 |
| Krip Turrets | Forge and NeoForge | 1.19.2 – 1.21.1 | Client and server | 2025-06-07 |
| Defense Turrets | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-10-14 |
| Lunar Arsenal | NeoForge | 1.21.1 | Server required, client optional | 2026-06-25 |
Questions
Does Fel's Smart Arsenal need GeckoLib?
Do server and client both need the mod?
How do turrets get power?
In the catalog
Fel's Smart Arsenal is one of 8,499 Technology mods on ModsFinder, and one of 3,557 Technology mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
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What the author says
Fel's Smart Arsenal is a simple mod that adds automatic turrets for base defense, structure defense, etc. Notes: Turrets needs batteries in order to work, crouch + right click to turn On/Off turret. By default turrets will target only monster type entities, to edit turret behavior you must install SARA's module with…
Official listing
- Modrinth page
- modrinth.com/mod/fsa
- Owner
- Felina_Catness
- Published
- 2026-01-31
- Updated on Modrinth
- 2026-03-02
- Facts verified
- 2026-10-15