Best Weapons for Extended Light Mag III in Arc Raiders

MoonstoneGleam MoonstoneGleam 1 の

If you’ve been playing Arc Raiders, you’ve probably run into various weapon mods that change how your guns perform. One mod that often comes up is the Extended Light Mag III. In this guide, I’ll break down how it works, how to get it, and what most players do with it in practical gameplay. This isn’t a sales pitch—it’s a practical, experience-based look at the mod.

What is Extended Light Mag III?

In simple terms, Extended Light Mag III is a weapon modification that increases the ammo capacity of guns using light ammo. This means you can shoot more before needing to reload. In general, players find it most useful on weapons that fire rapidly and run through ammo quickly.

It’s considered a rare modification, which means you won’t find it on every weapon or in every loot drop. The mod adds +15 magazine size to the weapons it’s compatible with.

Compatible Weapons

Most players usually attach this mod to the following weapons:

Hairpin

Kettle

Stitcher

Burletta

Bobcat

These are weapons that benefit the most because they are fast-firing and can run out of ammo quickly during missions.

How to Get Extended Light Mag III

There are a few ways to get this mod, but the method you choose often depends on how much time you want to spend farming materials.

1. Blueprint Requirement

The first thing you need is the Extended Light Mag III blueprint. Without it, you cannot craft the mod at all. Many players look for ways to ARC Raiders blueprints buy fast on U4N, since having the blueprint speeds up the process significantly. Once you have it, you can craft the mod as many times as you want, provided you have the materials.

2. Crafting Materials

To craft one Extended Light Mag III, you generally need:

2× Mod Components

5× Steel Springs

You also need a crafting station at Gunsmith level 3. This is typical for rare mods—most players reach this station fairly early in mid-game progression.

3. Scavenging and Recycling

If you already have an Extended Light Mag III you don’t need, you can recycle it to get some of the components back. Recycling one mod usually yields:

1× Mod Component

2× Steel Springs

2× Mechanical Components

This system encourages players to manage their inventory carefully. If you have extra mods, you can recover materials instead of letting them go to waste.

How It Works in Practice

So, what does the mod actually do when you’re in a mission?

Magazine Size Increase

Adding +15 rounds to your magazine may not sound huge, but for light ammo weapons, this makes a noticeable difference. Most players report that it allows them to sustain fire longer during swarm encounters without interrupting their aim to reload.

Weight and Movement

The mod weighs 0.75 units, which is light enough that it doesn’t slow you down or significantly affect mobility. In general, most players don’t worry about this unless they are stacking multiple heavy mods on a single loadout.

Strategy Tips

Use it on fast-firing weapons that run out of ammo quickly.

Pair it with reload speed mods if you want to maximize uptime during fights.

If you frequently run out of ammo in high-intensity missions, this mod usually becomes a go-to.

Common Player Behavior

From experience, most players tend to:

Prioritize this mod on weapons like Hairpin or Bobcat because they burn through ammo the fastest.

Keep a few backup mods in inventory to swap depending on mission type.

Balance mod choices between ammo capacity, damage, and reload speed.

In general, the mod is less useful on slow-firing weapons because the extra ammo doesn’t make as much of a difference. For example, using it on heavy or sniper-type guns is uncommon.


Extended Light Mag III is a practical, mid-game mod in Arc Raiders. It increases light ammo capacity by 15 rounds and works best on rapid-fire weapons. Most players get it through crafting with the blueprint and components, and some may recycle extras to recover materials. It’s lightweight, easy to use, and enhances combat flow for players who rely on sustained fire.

If you play consistently and often run out of ammo during intense fights, this mod is usually worth prioritizing. Understanding how it fits into your overall loadout and which weapons benefit the most can make your missions feel smoother and less interrupted by reloads.

Map Guide: Arc Raiders Shotgun Choke 2 Blueprint Location & How to get