Munitions Expansion Framework
🟡 Updated this year⚠️ Install Order · 2 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 0.8% endorsement rate
- 🏆 #44 of 228 Weapons mods in this game by downloads
📋 About This Mod
What is this mod, what does it do ?!
Munitions Expansion Framework (MEF for short) is a mod that adds a framework of new munitions/assets into starfield, allowing modders to use specific ammo or casings for their custom weapons, or for users, for use with the vanilla weapons using the vanilla weapons patch, this is the list of current features, remember none of this is final:
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[]Accurate casings dimensions, textures and models.[/]
[]Completely new munitions such as 5. 7x28mm, 9x19mm or 7. 62x51mm etc, each having their dedicated ammo entry, art object entry for casings, custom ammo boxes and LL integration, as well as recipes available for crafting at a custom Ammunition Workbench, here's a list of the calibres/casings implemented :[/]
- 10mm Auto
- 12 Gauge Buckshot and Slug
- . 277 SIG Fury
- . 300 BLK
- . 44 Magnum
- 5. 56x45mm
- 5. 45x39mm
- 5. 7x28mm
- 4. 6x30mm
- 7. 62x39mm
- 7. 62x51mm
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[]Custom made projectiles and properties for some munition variants, such as . 50 BMG AP, API, as well as 12 Gauge Slugs.[/]
[]Adjusted casing ejection settings and lifetime to be more satisfying.[/]
[]Easy to use for modders to add casings to their weapons.[/]
For modders
If you're a modder making a custom weapon and would like to allow your weapon to eject casings follow these instructions :
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[]In Nifskope, open your core/receiver weapon nif, select BSConnectPoint::Parents.[/]
[]At the bottom in the Block List tab, in Block details add a Connect point by changing the Num Connect Point value up(ie 5>6), click on the refresh icon under it next to Connect Points.[/]
[]In the list of Connect points, you now have a newly created connect point, select it, in Parent, rename the text to whatever you want or leave it blank, in Name, add P-Casing, modify the rotation and translation to adjust the ejection angle and start point, save the nif.[/]
[]Next, In the CK, select your weapon entry, edit, in the ammunition tab, at the bottom, use the Override Shell casing list, select whatever casing you want for your weapon, the assets provided by MEF should be named MEF-xxxxx, once you're done, click apply, save.[/]
[*]Make sure your weapon mod is loading AFTER the MunitionsExpansionFramework(MEF).esm, as a general rule, the MEF .esm should be the lowest possible in yo
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[]In Nifskope, open your core/receiver weapon nif, select BSConnectPoint::Parents.[/]
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[]Custom made projectiles and properties for some munition variants, such as . 50 BMG AP, API, as well as 12 Gauge Slugs.[/]
Munitions Expansion Framework adds new munitions to the game, featuring custom casings and ammo boxes with realistic dimensions and texturing. With 264 endorsements and 34,470 downloads, it's a niche but popular choice for players seeking more immersive ammunition options.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Solid community backing with 264 endorsements and 34k downloads
- Realistic casings and ammo boxes add immersion for weapon enthusiasts
- Actively maintained, last updated April 2026
⚠️ Cons
- Potential compatibility issues with other weapon mods not addressed
For players who want more realistic ammunition visuals and variety in their weapon mods. If you're a gun nut or immersion seeker, this is worth a look. Skip if you prefer gameplay changes over cosmetic additions.
💡 Beginner Tips
- Check the mod's description page for any hidden details or update notes before installing.
- If you use other weapon mods, test for conflicts by loading the game after installation.
- Consider endorsing if you like it—authors appreciate the support.
📊 Mod Details
- Game
- Starfield Mods
- Author
- Overshoot999
- Version
- 0.8.4
- Downloads
- 34,470
- Endorsements
- 264
- Category
- Weapons
- Created
- 2/5/2024
- Updated
- 4/15/2026
🧩 Commonly Used Together
Users add these mods to the same collections — a real compatibility signal, not an AI guess.
🔧 How to Install Starfield Mods
Download from Nexus.
📖 Full step-by-step install guide for Starfield →
Visit the official mod page for specific installation instructions for this mod.
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