Specna Arms SA-E40-L EDGE™ Gen.2 M4/AR-15 AEG; HAL²™ ETU

Bring modern electronic control and full-metal construction to your loadout with the Specna Arms SA-E40-L EDGE Gen.2. Available from HC2 Airsoft, this feature-packed M4/AR-15 AEG combines the HAL² electronic trigger unit, Bluetooth app connectivity and a reinforced AETHER gearbox. Furthermore, its Magnus TDC hop-up unit and 6.03mm tightbore inner barrel add to an impressive specification for players who want a highly configurable rifle.

Designed for players who value customisation, the SA-E40-L offers programmable firing options alongside a practical 8.5-inch barrel configuration. In addition, the KeyMod handguard, Picatinny top rail and adjustable stock provide flexibility when building your preferred setup.

HAL² Bluetooth Electronic Trigger Unit

One of the biggest highlights of the Specna Arms SA-E40-L EDGE Gen.2 is its HAL² electronic trigger unit. With integrated Bluetooth Low Energy connectivity, the system works with the Specna Link app to give you control over supported settings.

You can adjust trigger sensitivity across 500 levels and configure supported firing functions to suit your preferences. These features give the rifle more flexibility than a basic mechanical trigger setup. Depending on your chosen configuration, available functions include:

• Adjustable trigger sensitivity
• Binary trigger function
• Programmable burst modes
• Semi-automatic lock
• Pre-cocking
• Active braking
• Battery protection
• Magazine capacity limiting
• Reload-time simulation
• Multiple programmable firing profiles

Moreover, magazine capacity and reload-time settings can help players create a more structured experience during Milsim and other rules-based game formats. Always check the manufacturer’s instructions and your site’s rules before changing electronic settings.

AETHER Reinforced Gearbox and ESA Spring System

Specna Arms equips the SA-E40-L with its AETHER reinforced Version 2 gearbox shell, providing a robust foundation for the rifle’s internal components. The gearbox features 18:1 steel gears running on 8mm bushings, while the ESA quick-change spring system simplifies spring replacement.

Consequently, players have a more convenient way to adjust the rifle’s power configuration when required. Always follow the manufacturer’s instructions and confirm that the rifle complies with your site’s limits before playing.

The use of standard Tokyo Marui-spec AEG dimensions also gives the platform potential for compatible aftermarket maintenance parts and upgrades. However, check individual component specifications before purchasing, as compatibility can vary between parts.

Magnus TDC Hop-Up and Tightbore Barrel

The rifle features a Magnus TDC rotary hop-up unit, which allows you to make precise adjustments to the hop-up setting. This system works alongside a 6.03mm tightbore inner barrel to provide a performance-focused barrel and hop-up combination.

Correct setup matters just as much as the components themselves. Therefore, use suitable quality BBs, keep the barrel clean and tune the hop-up to match your ammunition and playing conditions.

Full-Metal M4 Design and KeyMod Handguard

The SA-E40-L features a full-metal M4/AR-15-style receiver with distinctive weight-reducing cuts. These details give the rifle a modern appearance while maintaining its familiar M4 layout.

Its 8.5-inch outer barrel ends in a birdcage-style flash hider and uses a 14mm CCW thread. As a result, you can explore compatible muzzle accessories, including tracer units and suppressors, provided they match the rifle’s thread and dimensions.

The KeyMod handguard offers additional mounting options, while the full-length 20mm Picatinny top rail accommodates compatible optics and sights. Furthermore, the package includes KeyMod-to-Picatinny rail sections and a stubby vertical foregrip, so you can customise the front end to suit your grip and accessory preferences.

Adjustable Stock and Practical Ergonomics

A six-position crane stock lets you adjust the rifle’s length to suit your stance and equipment. The stock also houses the battery compartment and includes functional QD sling sockets on both sides.

The rifle uses a Deans/T-Plug battery connector and comes with a Deans-to-Mini Tamiya adapter for compatible setups. In addition, a skeletonised flat trigger complements the modern styling, while the textured pistol grip supports a secure hold during use.

Key Features of the Specna Arms SA-E40-L EDGE Gen.2

• Platform: M4/AR-15 electric airsoft rifle
• Construction: Full metal
• Electronic trigger: HAL² Bluetooth ETU
• App connectivity: Specna Link
• Trigger sensitivity: 500 adjustment levels
• Firing functions: Programmable modes and supported electronic features
• Gearbox: AETHER reinforced Version 2 shell
• Gears: 18:1 steel
• Bushings: 8mm
• Spring system: ESA quick-change
• Hop-up: Magnus TDC rotary unit
• Inner barrel: 6.03mm tightbore
• Outer barrel: 8.5 inches
• Muzzle thread: 14mm CCW
• Handguard: KeyMod with Picatinny top rail
• Stock: Six-position crane stock with battery compartment
• Battery connector: Deans/T-Plug
• Included magazines: Two 130-round mid-cap magazines

Package Contents

• Specna Arms SA-E40-L EDGE Gen.2 AEG
• Two 130-round mid-cap magazines
• KeyMod-to-Picatinny rail sections
• Stubby vertical foregrip
• Flip-up front and rear sights
• Deans-to-Mini Tamiya adapter
• User documentation, as supplied

Check the supplied manual for battery requirements and charging guidance before use.

Shop Specna Arms at HC2 Airsoft

At HC2 Airsoft, we cater to players who want equipment that matches their individual play style. The Specna Arms SA-E40-L EDGE Gen.2 combines full-metal construction, app-connected electronic controls and a configurable M4 platform in one feature-rich package.

Whether you’re refining an established loadout or looking for a rifle with extensive setup options, the SA-E40-L deserves a closer look. Explore the range at HC2 Airsoft and prepare for your next game day.