Matrix / S&T Sportsline M4 RIS Airsoft AEG Rifle with G3 Micro-Switch Gearbox (Dark Earth / Block 3 9.5″)

Lightweight Tactical M4 with Advanced G3 Gearbox Technology

The Matrix / S&T Sportsline M4 RIS Airsoft AEG Rifle (Dark Earth / Block 3 9.5″) delivers an outstanding combination of modern styling, lightweight construction, and upgraded internal performance. Designed for players who want a dependable rifle straight out of the box, this M4 features the latest Matrix / S&T Generation 3 Gearbox, complete with a micro-switch trigger, integrated MOSFET, quick-change spring system, and LiPo-ready electronics.

Built with a high-strength nylon fiber reinforced polymer receiver and an aluminum M-LOK handguard, the Sportsline M4 keeps overall weight low without sacrificing durability. Whether you’re just getting started in airsoft or looking for an affordable yet capable backup rifle, this platform provides the performance, reliability, and customization options needed for everything from indoor CQB to outdoor woodland games.

With an adjustable SOPMOD stock, flat-top receiver, removable carry handle, and modern Block 3 styling, this rifle is ready to perform right out of the box.

Modern Block 3 Tactical Design

Inspired by today’s military carbines, the Block 3 configuration combines lightweight handling with excellent modularity.

The 9.5-inch aluminum M-LOK rail system offers a streamlined appearance while providing plenty of space for tactical accessories.

Perfect for:

• CQB games
• Outdoor skirmishes
• MilSim events
• Tactical training
• Speedsoft builds
• General-purpose field rifles

The Dark Earth finish pairs perfectly with multicam gear and modern tactical equipment.

Lightweight Yet Durable Construction

The rifle utilizes high-strength nylon fiber reinforced polymer throughout its major components to reduce weight while maintaining excellent durability.

Components include:

• Upper receiver
• Lower receiver
• Buffer tube
• SOPMOD stock
• Motor grip
• Removable carrying handle

Combined with the aluminum handguard, the rifle offers outstanding balance and comfortable all-day handling.

Advanced Matrix / S&T G3 Gearbox

At the heart of the rifle is the latest Matrix / S&T Generation 3 Gearbox, offering several improvements over previous generations.

Key internal upgrades include:

• Micro-switch electronic trigger
• Integrated MOSFET
• Quick-change spring guide
• Improved steel gears
• Full steel rack piston
• Aluminum cylinder
• LiPo-ready wiring

These upgrades provide smoother cycling, improved trigger response, and enhanced long-term reliability.

Integrated MOSFET Performance

The factory-installed MOSFET improves both electrical efficiency and shooting performance.

Benefits include:

• Faster trigger response
• Better battery efficiency
• Improved motor performance
• Electrical protection
• Reduced trigger contact wear

The inline MOSFET also includes over-discharge protection, helping extend the lifespan of your LiPo battery.

Responsive Micro-Switch Trigger

Unlike traditional mechanical triggers, the G3 Gearbox uses a micro-switch electronic trigger with magnetic sensor technology.

Advantages include:

• Crisp trigger break
• Faster semi-auto response
• More consistent cycling
• Reduced trigger resistance
• Improved shooting performance

Players will immediately notice the enhanced responsiveness during rapid engagements.

Quick-Change Spring System

The improved Quick-Change Spring Guide allows players to swap springs much more easily than conventional gearboxes.

This makes it simple to configure the rifle for:

• Indoor CQB
• Outdoor fields
• Local FPS regulations
• Seasonal gameplay

No complete gearbox disassembly is required.

Aluminum M-LOK Handguard

The 9.5-inch aluminum M-LOK rail system provides excellent customization potential.

Compatible accessories include:

• Weapon lights
• PEQ lasers
• Vertical grips
• Angled foregrips
• Bipods
• Sling mounts
• Hand stops

Additional Picatinny rail sections allow easy installation of optics and accessories.

Flat Top Receiver

The rifle features a flat-top receiver with a removable carrying handle.

This gives players the flexibility to mount:

• Red dot sights
• Holographic optics
• Magnified scopes
• LPVO optics
• Backup iron sights

The included carry handle can easily be removed for a modern optics-ready setup.

Adjustable SOPMOD Stock

The six-position SOPMOD-style stock provides:

• Adjustable length of pull
• Comfortable cheek weld
• Improved balance
• Better battery storage

Players can quickly tailor the rifle to their preferred shooting position.

Key Features

✔ Matrix / S&T Generation 3 Gearbox

✔ Micro-switch trigger system

✔ Magnetic trigger sensor

✔ Integrated MOSFET

✔ Over-discharge battery protection

✔ Quick-change spring guide

✔ Reinforced steel gears

✔ Full steel rack piston

✔ Aluminum cylinder

✔ LiPo-ready wiring

✔ High-strength polymer receiver

✔ Aluminum 9.5″ M-LOK handguard

✔ Flat-top receiver

✔ Removable carry handle

✔ Adjustable SOPMOD stock

✔ Metal 300-round high-cap magazine

✔ Approximate FPS: 370–400 FPS

✔ Manufactured by Matrix / S&T

Why Choose the Matrix Sportsline M4 G3?

The Matrix / S&T Sportsline M4 offers outstanding value without compromising on features.

Its upgraded Generation 3 Gearbox, responsive micro-switch trigger, integrated MOSFET, lightweight construction, and modern Block 3 styling make it an excellent option for beginners, intermediate players, and experienced airsofters seeking a dependable backup rifle.

Whether you’re entering your first game or expanding your collection, this rifle delivers performance well beyond its class.

The Matrix / S&T Sportsline M4 RIS Airsoft AEG Rifle with G3 Micro-Switch Gearbox combines lightweight durability, advanced electronics, and modern tactical styling into one exceptional package. Featuring a Generation 3 LiPo-ready gearbox, integrated MOSFET, quick-change spring system, aluminum M-LOK handguard, and responsive electronic trigger, it delivers dependable field performance and outstanding value for players of every skill level.