Specna Arms SA-E40-L EDGE™ M4/AR-15 AEG; HAL™ ETU

If you love a primary which stands out with a high-speed aesthetic, the Specna Arms SA-E40-L EDGE™ M4/AR-15 AEG; HAL™ ETU is one to watch. This full metal M4 replica boasts a lightweight skeletonised receiver with stylish weight reduction ports, along with metallic blue accents so it really pops next to its boring brethren.

A revamped version of the original SA-E40, the HAL™ ETU model adds programmable fire modes into the mix, along with pre-cocking and trigger sensitivity adjustment. All the best bits of the original EDGE internals remain, including the ORION V2 gearbox with CNC aluminium compression parts, a polymer piston with a full steel tooth rack, 18:1 ratio steel gears running on 8mm ball bearing bushings and a quick-change ESA spring guide, making power tuning a breeze.

As is the standard for Specna, the inner barrel is a 6.03mm tightbore, enhancing accuracy potential and providing an FPS boost thanks to air efficiency improvements. If you love a lightning-fast, eye-catching AR build, you'll love the Specna Arms SA-E40-L EDGE™ M4/AR-15 AEG; HAL™ ETU!

Starting at the front, we find a pre-installed bird cage-style flash hider mounted to the 14mm CCW threading at the tip of the 8.5-inch outer barrel. If you're the type to customise, you'll be happy to learn that the 14mm CCW threading is the most commonly used on Airsoft guns, giving you access to a wide variety of aftermarket muzzle devices, including flash hiders, muzzle brakes, tracer units and suppressors.

The handguard of the SA-E40-L features KeyMod attachment slots at the 3, 6, and 9 o'clock positions, ready for KeyMod accessories to be mounted. The offset angles include extra KeyMod slots, ideally placed for an offset flashlight, along with a full-length 20mm Picatinny rail at the 12 o'clock position, which seamlessly mates with the receiver rail.

Pre-installed on the 3 and 9 o'clock KeyMod slots, we are treated to a pair of 20mm Picatinny rails for KeyMod, made from CNC-machined aluminium and finished in eye-catching metallic blue. These rails allow you to mount 20mm Picatinny accessories onto the KeyMod slots, but if you prefer a sleeker look, you can remove them entirely. The set also includes a stubby vertical foregrip which mounts to KeyMod slots, a great accessory for close-quarters handling.

Mounted to the upper Picatinny rail, we can find pre-installed flip-up aperture iron sights, made from high-density polymer and offering toolless windage adjustment via the drum on the right side of the rear sight. The front sight is also adjustable for elevation using an M4/AR-15 front sight adjustment tool. The sights are rail-mounted and can be removed, but thanks to their low-profile form, they can be left installed and flipped down for emergency use without obstructing the top rail and preventing a scope or red dot sight from being mounted.

As we come to the receiver of the SA-E40-L, we can take note of its familiar M4/AR-15 style layout, making it an easy transition in terms of training if you're already accustomed to running an AR platform in-game. The most noticeable change from a milspec AR is the weight-reducing ports, machined along the left side of the upper receiver and right side of the magazine well, adding sporty styling to the mix while saving weight to enhance handling. The magazine release fence on the right side is serrated, and the forward assist bulge is scalloped, shaving off a few more precious grams so you can outpace your foes!

The charging handle is an extended example, positioned at the top rear of the receiver, which can be pulled back to reveal the rotary HOP-up unit, the latest design for the M4/AR-15 AEG and is known for allowing finer increments of adjustment for more precise HOP-up application, and holding its setting for longer under the vibrations of full-auto fire.

The fire selector is of the standard M4/AR-15 layout, with a 3-position selector switch located above the pistol grip on the left side, offering safe, semi-auto and full auto. The selector has a 90-degree throw between each fire mode, allowing the control to be used swiftly while minimising the chances of accidentally knocking the selector out of place.

The Specna Arms SA-E40-L features a skeletonised flat trigger, blending well with its competition-shooting inspired build and allowing for snappy double taps in semi-auto. The pistol grip features crackle texturing on either side and linear serrations on the front and back, providing excellent gripping qualities for both gloved and un-gloved users. As with most M4/AR-15 AEGs, this grip is compatible with aftermarket M4/AR-15 AEG grips, ideal for customisation addicts!

The magazine release is located on the magazine well on the right side and is well within reach of the trigger finger for right-handed users. This mag catch is right-hand optimised but can be used by lefties as well with a bit of practice. The right side of the upper receiver has the usual M4/AR-15 features, including a mock forward assist button, mock brass deflector and the dust cover which conceals the mock bolt and HOP-up adjuster.

At the rear of the receiver, we are treated to an ambidextrous sling plate which offers two sling points on the left side and one on the right. The sling plate is ideal for single-point slings, but can also be paired with a front sling mount if you prefer a two-point sling setup. Being constructed from steel allows the sling plate to take the weight of the SA-E40-L easily, and provides confidence that the plate will never fail and dump your gorgeous rifle into the dirt.

Following the sling plate, we come to the 6-position M4/AR-15 buffer tube, which is constructed from aluminium for a great balance of strength, realism and low weight. The Crane stock of the SA-E40-L is mounted over the buffer tube and features a sloped cheekpiece for greater comfort, a thick rubber butt plate with aggressive gripping texture and a QD sling socket on either side, both of which are fully functional. The stock has 6 positions of adjustment, making it suitable for any body type or loadout and includes a quick-detach butt plate for easy access to the battery compartment.

The battery compartment is inside the crane stock, accessible by squeezing the two tabs at the toe of the stock together, after which you can lift the butt plate off, remove the battery plug and make use of the stock's built-in battery compartment to house a nunchuck/crane-style battery. The pre-installed connector is a Deans/T-plug, but a Deans to mini-Tamiya adapter is included in the box. For the SA-E40-L, we recommend a 7.4V 1200mAh LiPo stick battery for an easy fit and great performance.

Inside, the SA-E40-L keeps the best of the previous EDGE™ series, adding in the HAL™ programmable ETU for more customisation options than ever before. The ORION V2 gearbox boasts a CNC aluminium piston head, CNC aluminium cylinder head, CNC aluminium nozzle and a polymer piston with a full rack of steel teeth. The gearset is a standard ratio 18:1 set made from steel, running on 8mm ball bearing bushings for a smooth gearbox sound and enhanced mechanical efficiency. The spring guide is also an ESA quick-change example, allowing for easy power tuning without disassembling the gearbox itself.

The HAL™ ETU adds a whole lot of functionality into the mix, with programmable fire controls, 6 levels of pre-cocking adjustment and 5 levels of trigger sensitivity adjustment. Available fire modes include 3 or 5-round burst, binary trigger, AUG mode, aka two-stage trigger, semi-auto only and sniper delay, giving you loads of options for how you use your SA-E40. The inner barrel is also a 6.03mm tightbore example, improving accuracy potential and ensuring the E40 does the job at long range.

A solid build with revamped internals and a rare aesthetic, the SA-E40 in its HAL™ ETU-equipped form is a significant improvement over the original, keeping pace with the best of the best from recent releases. If you're all about striking platforms which depart from the norm, the Specna Arms SA-E40-L EDGE™ M4/AR-15 AEG; HAL™ ETU should be on your shopping list!

Features

• Full metal construction
• Metallic blue outer barrel, trim parts, rails & trigger - Rare form factor!
• 6.03mm Tightbore inner barrel - Superb accuracy potential
• Sound-amplifying muzzle device pre-installed - Booming muzzle report
• 14mm CCW Male threaded outer barrel - Tracer/suppressor ready
• KeyMod handguard - 20mm rail up top, KeyMod slots on the sides & bottom
• Stubby vertical foregrip included - Mounts to KeyMod slots
• 20mm Picatinny rail adapters for KeyMod pre-installed - Add 20mm accessories or remove for a sleek look
• 20mm Picatinny railed receiver - Ready for a red dot sight or scope
• Flip-up iron sights pre-installed - Modern, low-profile sight design, adjustable for windage & elevation
• Weight-reduced receiver design - Stylish ports & scallops to cut weight, 3-gun competition shooting style
• 3-Position fire selector switch - SAFE - SEMI - AUTO, programmable fire modes via the HAL ETU™
• Extended charging handle - Easy HOP-up access when wearing gloves
• Rotary adjustable HOP-up unit - Inside the ejection port, hold the charging handle back to access
• Ambidextrous sling plate - Steel construction, ideal for single-point hook slings
• 6-Position M4/AR-15 buffer tube - Adjust the stock to suit your body type and loadout
• Light Ops stock pre-installed - QD sling sockets, standard sling slots & rubber butt plate
• Rear wired: Deans connector - Recommended battery: 7.4V 1200mAh LiPo in stick config.
• Version 2 ORION™ Gearbox:
  • CNC Aluminium nozzle
  • CNC Aluminium cylinder head
  • CNC Aluminium ball bearing piston head
  • Polymer piston with full steel tooth rack
  • 18:1 Steel gears
  • 8mm Ball bearing bushings
  • Ball bearing spring guide (ESA Quick change)
• HAL™ ETU Functions:
  • 3 or 5-round burst
  • Binary trigger
  • Semi-auto only
  • Sniper delay
  • Two-stage trigger (AUG mode)
  • Active braking
  • Low-voltage alarm
• HAL™ Programming instructions available here
• Compatible with M4/AR-15 AEG magazines
• Recommended mags:
  • Specna Arms S-MAG Mid-cap | S-MAG High-cap | S-MAG Mid-cap 5pk | S-MAG High-cap 5pk

Package Includes

• Specna Arms SA-E40-L EDGE™ M4/AR-15 AEG; HAL™ ETU
  • 125rnd S-MAG Mid-cap magazine x 2
  • Deans to mini-Tamiya adapter