The Extended Medium Mag III is a weapon modification that significantly boosts the magazine size of compatible weapons using medium ammo. If you're looking to increase your weapon's ammo capacity, this mod is a great choice for enhancing your efficiency during combat.

What the Extended Medium Mag III Is

The Extended Medium Mag III is a rare weapon modification blueprint in ARC Raiders. It lets you craft a magazine that increases the ammo capacity of medium‑ammo weapons by a significant amount (about +12 rounds). You need this blueprint to craft the item at your Workshop once you've unlocked it.

Key Stats

• Magazine Size Increase: +12 magazine size.
• Weight: 0.75 units.
• Sell Price: 5,000 coins.

Compatible Weapons

The Extended Medium Mag III can be used with the following weapons:

• Arpeggio
• Osprey
• Renegade
• Torrente
• Tempest
• Venator

These weapons will benefit from the increased magazine size provided by this modification.

How to Obtain the Blueprint

There are two primary ways to acquire the Extended Medium Mag III blueprint:

1. Scavenging: The blueprint can be found as players explore various areas within the game world.

2. Crafting: Players can craft the modification after obtaining the blueprint. To craft it, you will need the following materials:

• 2x Mod Components
• 5x Steel Spring

Additionally, you will need to reach Gunsmith Level 3 to craft it.

Crafting Requirements

If you prefer a more convenient way to obtain the Extended Medium Mag III blueprint, you can buy Arc Raiders Extended Medium Mag 3 blueprints from SHANNENG. This option gives you direct access to the blueprint, saving time and effort in scavenging or crafting it yourself.

How Blueprint Drops Work in ARC Raiders

Before we talk about where to find this specific blueprint, it helps to understand how blueprints generally spawn in the game:

• Blueprints drop randomly from loot containers, weapon cases, and certain enemy loot caches you find during raids.
• They are not tied to a specific menu reward or preset spot like story items. You have to open containers in the world.
• Higher‑risk areas and rare loot zones generally have better chances at blueprints, but drops are still RNG.

Once you pick up a blueprint in the world, you need to learn and consume it in the menu before it unlocks the crafting recipe at your Workshop.

Where to Find Extended Medium Mag III

There is no single guaranteed “fixed” spot where the Extended Medium Mag III blueprint always spawns. Instead, players have found it while looting containers and equipment cases in certain areas:

Common Sources Where Players Have Found It

• Surveyor Caches: Community reports indicate that the Extended Medium Mag III blueprint has dropped from Surveyor loot caches you encounter during raids. These are random containers you can find in the world.

Because of the way loot works in ARC Raiders, you won't always see this blueprint even if you visit the same location multiple times. Expect to do a number of runs before finding it.

Tips For Increasing Your Chances

• Run high‑loot zones: Areas with more locked rooms, weapon crates, and rare containers boost overall blueprint drop odds.
• Play night or high‑difficulty raids: Many players report higher blueprint frequencies under more challenging conditions (though results vary and this is not formally confirmed by data).
• Check locked rooms and rare chests: These often hold better loot tier containers than open crates.

Recycling & Salvaging

If you need to dismantle an Extended Medium Mag III, you can recycle or salvage it:

Summary

• Extended Medium Mag III is a rare magazine upgrade blueprint.
• You unlock it by looting surveyor caches and other containers while raiding.
• There's no guaranteed fixed location — your best option is to loot high‑tier containers in multiple runs.
• Learn and consume it at your Workshop, then craft it with mods and springs.

The Extended Medium Mag III is an excellent upgrade for players looking to enhance their weapon's ammo capacity. By crafting it or scavenging the blueprint, players can make a significant improvement to their combat effectiveness.

If you're looking to purchase the Extended Medium Mag III blueprint, you can find it at SHANNENG, where the blueprint is available at competitive prices, offering a convenient way to acquire this modification.