Specna Arms SA-C12 CORE™ HAL¹ ETU™ M4/AR-15 Carbine AEG

If you're looking for a compact CQB platform, the Specna Arms SA-C12 CORE™ HAL¹ ETU™ M4/AR-15 AEG should interest you. Constructed to Specna's CORE standard, the SA-C12 boasts a CNC aluminium handguard and alloy outer barrel and bird cage muzzle attachment paired with a high-density polymer receiver, buffer tube, stock and pistol grip, giving you a great combination of realism and ease of use. As with the original CORE series, the polymer quality is top-notch, more scratch-resistant than comparable metal receivers and ultra-light for high energy throughout the skirmish day.

Inside this, the latest SA-C12 variant, we are treated to the HAL ETU/MOSFET, a lovely addition to a beginner rifle! The HAL¹ ETU offers binary trigger, AUG mode and sniper delay instead of semi-auto and semi-auto lock, 3-round burst or 5-round burst instead of full auto, along with several quality-of-life improvements and most importantly for CQB, adjustable pre-cocking! Pre-cocking positions the piston at the rear of its cycle after a shot, meaning when you pull the trigger the response is practically instantaneous, ideal for semi-auto duels in the close confines of a CQB site.

A considerable improvement over the original SA-C12, the HAL¹ ETU adds a lot of functionality to this compact and lightweight beginner-friendly platform. With no more trigger lock-ups when shooting semi-auto, plenty of fire mode options and the pre-installed 6.03mm tightbore inner barrel and rotary HOP-up combo which made the original SA-C12 CORE such a solid choice, the new version is hard to beat!

Starting at the front we find an M4-style Bird Cage flash hider, sticking out the front of the CNC aluminium quad-railed handguard. This gives the SA-C12 a classic military look and replicates the real steel platform perfectly. The outer barrel features the common 14mm CCW male threading, ideal for swapping to a sneaky suppressor or tracer unit. The handguard itself is constructed from CNC machined aluminium, guaranteeing a flawless form and precise, in-spec attachment interfaces. 20mm Picatinny rails are present at the 3, 6, 9 and 12 o'clock positions, ready for your choice of 20mm rail-compatible accessories including grips, lasers, flashlights and more!

Next up we reach the receiver, which is of a standard and instantly recognizable M4/AR-15 configuration with controls laid out in a considerate and ergonomic manner, allowing the SA-C12 to be manipulated quickly and instinctively by veterans, or learned rapidly by new users.

The fire selector lever can be found just above the pistol grip, on the left side of the AEG, providing 3 modes of fire, SAFE, SEMI, and AUTO, with a 90-degree throw between each. The fire modes are helpfully marked in bold recessed text on the receiver and the selector switch locks positively into each mode with the help of texture on its surface to guarantee you have a good grip on this important control. The magazine release is on the right side of the magazine well and is accessible for a right-handed user with the tip of the trigger finger or by a lefty using their off-hand thumb.

Pulling back the extended charging handle, at the top rear of the receiver, will pop open the dust cover and retract the mock bolt carrier to allow access to the rotary HOP-up adjuster. This is the latest HOP-up unit design for the M4/AR-15 and provides finer increments of adjustment and holds its setting more effectively when compared to the older gear style HOP-up unit. The charging handle has an extended latch for easier access, allowing even those with thick gloves to access the HOP-up unit, though you may need to remove your glove to adjust the unit!

The bolt catch on the left side of the receiver does not function but is nonetheless a separate part mitigating the common tell-tale signs of a replica. The forward assist is a similar story, being present on the right side of the upper receiver and being a separate moving part which can be pressed in but does not affect the function of the AEG. A new addition to this HAL-equipped SA-C12 is its flat trigger, enhancing the aesthetic with a touch of modernity and providing an easily slappable trigger for snappy double taps in semi-auto.

The pistol grip of the SA-C12 is an M16A2/M4A1 style pistol grip, also known as the "A2" finger ridged grip. The A2 has diamond checkering on either side and linear texture on the back strap to provide excellent gripping qualities whether you wear gloves or not. The finger ridge is designed to help you keep hold of the rifle and prevent the grip from slipping out of your hands when held in a single hand. As with most M4/AR-15 AEGs, this grip is compatible with aftermarket M4/AR-15 AEG grips, ideal for customisation addicts!

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. Being equipped with the HAL ETU, we are also treated to a Deans/t-plug battery connector, a lower resistance alternative to the mini-Tamiya found on previous Specna Arms CORE AEGs. For the SA-C12, we recommend a 7.4V 1450mAh LiPo crane/nunchuck battery for an easy fit and great performance.

The Crane stock also includes a pair of QD sling sockets, one on each side, allowing for QD sling swivels to be added for a quick removable sling setup. Conventional sling slots (aka "footman loops") are also present for those who want a two-point sling but prefer the old-fashioned way. The butt plate is also made from grippy rubber, ensuring your SA-C12 doesn't slip off your shoulder at a critical moment.

Inside the HAL¹ equipped SA-C12, we have an alloy V2 gearbox shell with 18:1 ratio steel gears running on 8mm bushings. The spring guide is an ESA quick change example, making power tuning a breeze for those who want to get as close to site limits as possible. The inner barrel is a 6.03mm tightbore paired with a rotary HOP-up unit, giving you superb accuracy potential and the most up-to-date HOP-up unit style for M4/AR-15 AEGs. All internal parts are Tokyo Marui AEG spec, meaning aftermarket upgrades are a go for the performance seekers!

The HAL¹ 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-C12. Features like these are usually only present in high-end replicas; we simply cannot believe the wealth of functionality inside the HAL¹ equipped SA-C12, especially considering the price!

If you're in search of a close-quarters AEG with advanced functionality, all whilst maintaining an affordable price point, then the Specna Arms SA-C12 CORE™ HAL¹ ETU™ M4/AR-15 Carbine AEG is certainly one for you. Packing more tech inside than ever before with the same thoughtful pre-upgraded parts as the original, the SA-C12 is ideal for new skirmishers or pros seeking a more compact aesthetic!

Features

• 6.03mm Tightbore inner barrel - Great accuracy potential
• High-density polymer with CNC Aluminium handguard
• Bird cage Flash Hider pre-installed
• 14mm CCW Male threaded outer barrel
• Quad 20mm Picatinny railed handguard - Ready for 20mm Picatinny accessories
• Flip-up aperture iron sights pre-installed - Adjustable for windage and elevation, 2 apertures to choose from
• 20mm Picatinny railed receiver - Ready for red dot sights, PEQ lasers or scopes to be mounted
• Rotary adjustable HOP-up unit - The latest M4/AR-15 design, holds its setting well and allows for fine adjustment
• Finger ridged "A2" pistol grip - Comfortable for most hand sizes, textured for extra traction
• Flat milspec trigger guard - Matches real US Army issued M4A1 rifles
• 3-Position fire selector switch - SAFE, SEMI AUTO & FULL AUTO, 90-degree throw between each mode
• Extended charging handle - Fast access to the HOP-up unit for quick mid-game adjustment
• 6-Position M4/AR-15 buffer tube - Adjust the stock quickly and easily to suit your body type or loadout
• Crane stock pre-installed - Plenty of battery space, QD sling sockets built-in
• Version 2 Gearbox:
  • Steel 18:1 ratio gearset
  • ESA quick change spring system
  • 8mm bushings
  • Alloy shell
• HAL¹ Programmable MOSFET/ETU functions:
  • Low voltage alarm
  • Active braking
  • Adjustable pre-cocking (6 levels)
  • Two-stage trigger (AUG mode)
  • Sniper delay
  • Semi-auto only
  • Binary Trigger
  • 3 or 5-round burst
• HAL¹ Programming instructions available here
• Compatible with M4/AR-15 AEG magazines - S-Mag High-cap | S-Mag Mid-cap | S-Mag Mid-cap 5 Pack
• Rear wired: Deans battery connector - Recommended battery: 7.4V 1450mAh LiPo in crane/nunchuck config

Package Includes

• Specna Arms SA-C12 CORE™ HAL¹ ETU™ M4/AR-15 Carbine AEG
• 300rnd S-Mag M4/AR-15 High-cap magazine
• Cleaning rod