The modification and upgrade systems in ARC Raiders separate surviving players from thriving raiders. While you can stumble through early raids with basic gear, mastering the crafting loop transforms your entire experience. You'll craft superior weapons, unlock game-changing modifications, and build the perfect loadout for any situation.
Why Weapon Modifications Matter in ARC Raiders
Your base weapons are just starting points. Modifications completely reshape how your firearms perform, turning a standard rifle into a precision instrument or close-quarters destroyer. The difference between a basic Arpeggio and one equipped with a Compensator III and Extended Medium Mag III is night and day.
The modification system works through specialized attachment slots on each weapon. You can enhance recoil control, boost magazine capacity, improve stealth capabilities, or increase damage output. Each modification category serves specific tactical needs:

Tip
Focus on modifications that complement your playstyle rather than trying to fix weapon weaknesses. A shotgun with range modifications still won't outperform a dedicated sniper rifle.
Understanding the Gunsmith Upgrade Path
The Gunsmith (Weapon Bench) forms the foundation of your modification journey. This crafting station has three distinct tiers, each unlocking progressively powerful options.
Gunsmith Installation and Tier 1
Setting up your initial Gunsmith requires 20 Metal Parts and 30 Rubber Parts. This investment gives you access to basic modifications like Compensator I, Vertical Grip I, and Extended Magazine I variants.
Tier 2 Gunsmith Upgrades
Advancing to Tier 2 demands more specialized materials: 3 Rusted Tools, 5 Mechanical Components, and 8 Wasp Drivers. This upgrade unlocks Silencer I, improved grip variants, and better magazine extensions.
Mechanical Components represent the biggest bottleneck in this upgrade. You'll find them in Mechanical Field Hotspots during surface raids or craft them at the Refiner using 15 Metal Parts and 3 Steel Springs (10-minute crafting time).

Tier 3 Gunsmith Mastery
Tier 3 Gunsmith unlocks the most powerful modifications, including Silencer III (60% noise reduction), Compensator III (50% dispersion reduction), and specialized attachments like the Anvil Splitter that adds three projectiles per shot.
Important
Tier 3 modifications often include durability burn penalties. The Compensator III provides excellent accuracy but increases durability consumption by 20%.Essential Modification Categories
Recoil Control Systems
Vertical Grips and Muzzle Brakes form the backbone of recoil management. The Vertical Grip III provides 40% vertical recoil reduction but slows ADS speed by 30%. Muzzle Brake III offers balanced 25% reduction in both horizontal and vertical recoil.
Stock modifications provide alternative recoil solutions. The Stable Stock III reduces recoil recovery time by 50% but increases weapon handling times. The Lightweight Stock takes the opposite approach, boosting ADS speed by 200% while increasing recoil.
Magazine and Capacity Upgrades
Extended magazines scale with weapon categories. Light weapons like the Bobcat benefit from Extended Light Mag III (+15 rounds), while medium weapons such as the Arpeggio use Extended Medium Mag III (+12 rounds).
Shotgun magazines provide smaller but crucial capacity boosts. The Extended Shotgun Mag III adds 6 rounds to weapons like the Il Toro and Vulcano.
Stealth and Suppression
Silencer systems reduce weapon noise significantly. Silencer I provides 20% noise reduction, scaling up to Silencer III at 60% reduction. Shotgun Silencer offers 50% noise reduction specifically for shotgun platforms.
These modifications prove invaluable when avoiding ARC detection or maintaining stealth during player encounters.
Advanced Crafting Station Management
Supporting Bench Systems
While the Gunsmith handles weapon modifications, other benches support your overall progression:
Equipment Bench crafts defensive gear and augments. Upgrading requires 30 Plastic Parts and 40 Fabric for Tier 1, progressing to 5 Industrial Batteries and 3 Advanced Electrical Components for Tier 3.
Medical Station produces healing supplies essential for extended raids. Initial setup costs 50 Fabric and 8 ARC Alloys.
Explosives Bench creates tactical explosives and grenades. Base installation requires 6 ARC Alloys.
[IMAGE: crafting station overview layout]
The Refiner's Role
The Refiner transforms basic materials into advanced components. This expensive station (75 Metal Parts and 3 ARC Motion Cores for Tier 1) becomes essential for high-tier crafting.
Key Refiner products include:
- Advanced Mechanical Components for Tier 3 upgrades
- Mod Components for elite modifications
- Specialized Gun Parts for weapon crafting
Warning
Refiner upgrades represent major material investments. Plan your progression carefully before committing resources.
Scrappy: Your Material Collection Partner
Scrappy the rooster provides passive material collection while you raid. Upgrading Scrappy through five tiers dramatically improves your material flow:
Dog Collars and Cat Beds spawn in residential areas, while fruits grow near trees and cacti. A fully upgraded Scrappy can deliver nearly complete stacks of common materials after two raids.

Strategic Modification Selection
Weapon-Specific Optimization
Different weapons benefit from specific modification approaches:
Assault Rifles like the Arpeggio excel with Compensator III and Extended Medium Mag III for sustained engagements.
Shotguns such as the Il Toro benefit from Shotgun Choke III (40% dispersion reduction) and Shotgun Silencer for close-quarters stealth.
Sniper Rifles like the Osprey maximize effectiveness with Extended Barrel (25% bullet velocity increase) and Silencer III.
Playstyle Considerations
Aggressive players should prioritize magazine extensions and recoil control for sustained firefights.
Stealth-focused raiders benefit from silencer systems and lightweight stocks for improved mobility.
Support players can utilize specialized modifications like the Kinetic Converter (15% fire rate increase) for suppressive fire roles.
Resource Management and Progression
Material Priority System
Focus your collection efforts on bottleneck materials:
- Mechanical Components for Tier 2 upgrades
- Mod Components for elite modifications
- ARC Alloys for multiple crafting stations
- Steel Springs for magazine modifications
Efficient Upgrade Sequencing
Start with Gunsmith Tier 2 for immediate combat improvements. Follow with Scrappy upgrades for passive material generation. Complete other crafting stations based on your tactical preferences.
Pro Tip: Coordinate your surface raids with specific material needs. Target mechanical hotspots when pursuing Gunsmith upgrades, or focus on residential areas when upgrading Scrappy.
Mastering the Modification Meta
The modification system in ARC Raiders rewards strategic thinking over random upgrades. Understanding how different attachments interact with specific weapons and playstyles creates significant advantages during surface operations.
Your progression through the crafting tiers should align with your tactical goals. Players focused on stealth benefit from early silencer access, while aggressive raiders need recoil control and magazine capacity first.
The integration of Scrappy's passive collection with active material gathering creates a sustainable progression loop. You'll maintain steady advancement even after difficult raids where you lose equipment.
Remember that modifications represent investments in your long-term success. A well-modified weapon often outperforms higher-tier base weapons, making the crafting system crucial for competitive play. Master these systems, and you'll transform from a struggling survivor into a dominant force in the wasteland.

