Description
Specna Arms SA-C22 CORE Gen.2 HAL ETU M4/AR-15 Carbine AEG – The Next-Gen Skirmish Starter
The Specna Arms SA-C22 CORE Gen.2 redefines what a budget-friendly starter platform can do. While the original CORE series built a stellar reputation for feather-light reliability, this second-generation overhaul introduces premium components trickled down straight from Specna’s top-tier PRIME line. Built around a glass-fibre reinforced polymer receiver and an aggressive CNC-machined aluminium M-LOK handguard, it strikes the perfect balance between robust structural rigidity and high-speed manoeuvrability. The true crown jewel of the Gen.2 is the factory-fitted HAL Electronic Trigger Unit, which swaps old mechanical trigger contacts for advanced magnetic sensors. This setup gives you total control over pre-cocking, trigger sensitivity, and advanced burst modes – features typically reserved for high-end custom builds.
Key Features & Performance
- Magnetic HAL ETU System: Features a Hall-effect magnetic sensor trigger providing 5 levels of sensitivity adjustment, 6 levels of pre-cocking, active braking, and a low-battery alarm.
- PRIME Series Internals: Upgraded with the reinforced V2 Aether gearbox shell, an Aether CNC-aluminium air-sealed nozzle, and a full steel-toothed polycarbonate piston.
- TDC Magnus Hop-Up Chamber: A top-centre-down rotary Hop-Up system paired with a Helium Flat Hop rubber and a 6.03mm precision inner barrel for laser-straight accuracy.
- ESA Quick Spring Change System: Swap your mainspring in under a minute via the stock tube buffer guide without extracting or opening the gearbox shell.
- M-LOK & 20mm Rail Real Estate: Lightweight 10-inch CNC aluminium handguard provides rock-solid mounting space for torches, grips, and optics.
- Complete Package: Ships out of the box with two 125-round S-MAG mid-cap magazines, a Deans-to-Mini-Tamiya adapter, and a spare M90 spring.
The “Pro” Take
It is incredibly rare to find a platform at this price point that doesn’t immediately require fifty quid’s worth of aftermarket tech work to feel snappy. The inclusion of the HAL ETU completely changes the dynamic of entry-level skirmishing. Setting the pre-cocking to its higher levels eliminates that classic, sluggish AEG trigger lag, giving you near-instantaneous trigger response on semi-auto. Because Specna chose to use a high-density, scratch-resistant polymer for the receiver rather than cheap, heavy pot-metal, the SA-C22 stays remarkably agile during intense, day-long operations without compromising on structural durability.
UK Spec & Site Performance
Out of the box, the SA-C22 arrives firing under 350 FPS on 0.20g.
This power level makes it an exceptional multi-role performer for British sites. In dense, damp woodland environments, the Magnus TDC Hop-Up and Helium flat bucking provide the stability required to lift heavier 0.28g BBs clean through heavy foliage. If you prefer urban CQB arenas, the lightweight frame enables snappy corner-clearing, whilst the HAL ETU allows you to lock the replica to semi-auto only or configure a binary trigger for blistering fast double-taps inside buildings.
Please note: To purchase the clean black or chaos bronze RIF (Realistic Imitation Firearm) editions, you must provide a valid UKARA registration or alternative UK sales defense. A bright two-tone service is available for non-registered players.
Friendly FAQ
Q: What battery do you recommend for this replica?
A: We highly recommend using a 7.4V LiPo crane or stick battery with a Deans/T-connector. The stock tube easily accommodates a split-cell configuration. Using a 7.4V battery ensures excellent longevity for the stock motor configuration while maintaining a very crisp trigger response.
Q: How do you program the different fire modes on the HAL ETU?
A: No external links or cables are needed. Programming is completed entirely through sequences of the fire selector switch and trigger pulls. The included instruction manual walks you through the simple programming loops to adjust pre-cocking, toggle binary trigger, or swap full-auto over to a 3-round or 5-round burst.
Q: Can I use standard M4 magazines in the SA-C22?
A: Yes. Although it comes with two excellent Specna Arms S-MAG mid-caps, the magwell is cut to standard TM (Tokyo Marui) specifications. It feeds flawlessly from most major aftermarket brands including Nuprol, PTS, and Battleaxe mid-caps.
Q: Does it include a battery and charger?
A: No, like most performance AEGs, the battery and charger are sold separately. You will need to source a LiPo-compatible smart charger and a Deans-equipped LiPo battery to get skirmish-ready.











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