{"product_id":"specna-arms-sa-j81-core™-hal-etu-gen-2-black","title":"Specna Arms SA-J81 CORE™ HAL ETU Gen. 2 - Black","description":"\u003ch2\u003eSpecna Arms SA-J81 CORE™ HAL ETU Gen. 2 - Black\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Specna Arms SA-J81 CORE™ HAL ETU Gen. 2 is a compact AK-style AEG equipped with programmable HAL™ electronics, a Magnus™ TDC hop-up chamber, upgraded CORE™ Gen. 2 internals and a quick-change spring system.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe SA-J81 belongs to the redesigned Specna Arms J-Series™ CORE™ Gen. 2 range, which combines an accessible price point with modern internal components and practical adjustment options. Its relatively short 725 mm construction and approximately 2,625 g weight make it easy to handle in woodland games, urban environments and tighter playing areas.\u003c\/p\u003e\n\n\u003cp\u003eThe nylon-fibre-reinforced polymer construction keeps the rifle manageable, while steel and metal-alloy components reinforce areas exposed to greater mechanical stress. A side-folding stock reduces the space required during transport and helps when operating in confined spaces.\u003c\/p\u003e\n\n\u003ch3\u003eProgrammable HAL™ ETU\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eHAL™ electronic trigger unit\u003c\/strong\u003e detects trigger movement using magnetic Hall-effect sensors instead of a conventional mechanical trigger switch. Trigger response, pre-cocking and fire-selector functions can be programmed directly through the trigger without opening the rifle or using a separate application.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable trigger sensitivity:\u003c\/strong\u003e five levels from 20 to 100%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable pre-cocking:\u003c\/strong\u003e six levels\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eActive Brake\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBinary trigger mode\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammable AUTO selector modes:\u003c\/strong\u003e full auto, semi-automatic, three-round burst or five-round burst\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammable SEMI selector modes:\u003c\/strong\u003e semi-automatic, binary, AUG or sniper mode\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEasy programming through the trigger\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLow-battery warning\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eIn the HAL™ AUG mode, the rifle fires an initial three-round burst and continues in full auto if the trigger remains pressed.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThis is the standard HAL™ ETU version with a conventional motor, not a separate BLDC model equipped with a brushless motor.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eUpdated CORE™ Gen. 2 internals\u003c\/h3\u003e\n\n\u003cp\u003eThe internal mechanism is built around a Version 3 gearbox with 8 mm bearings and 16:1 steel gears. The compression system includes an aluminium cylinder, sealed polymer piston and cylinder heads, a sealed aluminium nozzle and a piston with a 14.5-tooth steel rack.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eVersion 3 gearbox\u003c\/li\u003e\n\u003cli\u003e8 mm bearings\u003c\/li\u003e\n\u003cli\u003e16:1 steel gears\u003c\/li\u003e\n\u003cli\u003ePiston with a 14.5-tooth steel rack\u003c\/li\u003e\n\u003cli\u003eSealed polymer piston head\u003c\/li\u003e\n\u003cli\u003eSealed polymer cylinder head\u003c\/li\u003e\n\u003cli\u003eAluminium cylinder\u003c\/li\u003e\n\u003cli\u003eSealed aluminium nozzle\u003c\/li\u003e\n\u003cli\u003e6.03 mm brass precision inner barrel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMagnus™ TDC hop-up chamber\u003c\/h3\u003e\n\n\u003cp\u003eThe rotary \u003cstrong\u003eMagnus™ TDC hop-up chamber\u003c\/strong\u003e applies pressure directly from above, allowing precise and stable adjustment. It is paired with a 300 mm long, 6.03 mm brass inner barrel to support a consistent BB trajectory in the factory configuration.\u003c\/p\u003e\n\n\u003ch3\u003eQuick-change spring system\u003c\/h3\u003e\n\n\u003cp\u003eThe quick-change spring system allows the mainspring to be replaced without completely disassembling the gearbox. This makes it easier to adapt the muzzle velocity to different field limits and styles of play.\u003c\/p\u003e\n\n\u003cp\u003eThe advertised muzzle velocity of the standard configuration is approximately 116 m\/s or 380 FPS. An additional M90 spring is included for reducing the output when required.\u003c\/p\u003e\n\n\u003ch3\u003eLightweight AK-style construction\u003c\/h3\u003e\n\n\u003cp\u003eThe receiver and several external components are made from durable nylon-fibre-reinforced polymer. Selected structural parts, including components of the barrel assembly, sight blocks, handguard retainers and muzzle device, are made from aluminium and zinc alloy.\u003c\/p\u003e\n\n\u003cp\u003eThe top cover, fire selector and trigger guard are made from steel. The rifle also features a side-folding stock and an AK-style dovetail side rail for installing a compatible optic mount.\u003c\/p\u003e\n\n\u003cp\u003eThe battery compartment is located underneath the top cover and provides space for a stick-type LiPo or Li-Ion battery. The rifle uses a DEANS \/ T-connect battery connector, and a Small Tamiya to DEANS adapter is included.\u003c\/p\u003e\n\n\u003ch3\u003eMagazine compatibility\u003c\/h3\u003e\n\n\u003cp\u003eThe rifle is compatible with many AK-style magazines. Magazines from Cyma, JG, E\u0026amp;L and Bolt generally fit without modification, while magazines from other manufacturers may require minor fitting.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eCompact AK-style J-Series™ CORE™ Gen. 2 construction\u003c\/li\u003e\n\u003cli\u003eProgrammable HAL™ electronic trigger unit\u003c\/li\u003e\n\u003cli\u003eMagnetic Hall-effect trigger detection\u003c\/li\u003e\n\u003cli\u003eAdjustable trigger sensitivity and pre-cocking\u003c\/li\u003e\n\u003cli\u003eActive Brake and binary trigger functions\u003c\/li\u003e\n\u003cli\u003eProgrammable semi-automatic, full-auto and burst modes\u003c\/li\u003e\n\u003cli\u003eVersion 3 gearbox\u003c\/li\u003e\n\u003cli\u003e8 mm bearings and 16:1 steel gears\u003c\/li\u003e\n\u003cli\u003eMagnus™ rotary TDC hop-up chamber\u003c\/li\u003e\n\u003cli\u003e300 mm long, 6.03 mm brass precision inner barrel\u003c\/li\u003e\n\u003cli\u003eSealed aluminium nozzle\u003c\/li\u003e\n\u003cli\u003eQuick-change spring system\u003c\/li\u003e\n\u003cli\u003eNylon-fibre-reinforced polymer receiver\u003c\/li\u003e\n\u003cli\u003eSteel top cover, fire selector and trigger guard\u003c\/li\u003e\n\u003cli\u003eSide-folding stock\u003c\/li\u003e\n\u003cli\u003eAK-style dovetail side rail\u003c\/li\u003e\n\u003cli\u003eDEANS \/ T-connect battery connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eManufacturer: Specna Arms\u003c\/li\u003e\n\u003cli\u003eModel: SA-J81 CORE™ HAL ETU Gen. 2\u003c\/li\u003e\n\u003cli\u003eProduct type: electric airsoft rifle\u003c\/li\u003e\n\u003cli\u003eOperating system: AEG\u003c\/li\u003e\n\u003cli\u003eGearbox: Version 3\u003c\/li\u003e\n\u003cli\u003eElectronic trigger unit: HAL™ ETU\u003c\/li\u003e\n\u003cli\u003eMotor version: conventional motor, not BLDC\u003c\/li\u003e\n\u003cli\u003eFire modes: semi-automatic, full auto and programmable burst modes\u003c\/li\u003e\n\u003cli\u003eMuzzle velocity: approximately 116 m\/s \/ 380 FPS\u003c\/li\u003e\n\u003cli\u003eHop-up: adjustable Magnus™ TDC rotary chamber\u003c\/li\u003e\n\u003cli\u003eInner barrel diameter: 6.03 mm\u003c\/li\u003e\n\u003cli\u003eInner barrel material: brass\u003c\/li\u003e\n\u003cli\u003eInner barrel length: 300 mm\u003c\/li\u003e\n\u003cli\u003eGear ratio: 16:1\u003c\/li\u003e\n\u003cli\u003eBearing diameter: 8 mm\u003c\/li\u003e\n\u003cli\u003eOverall length: approximately 725 mm\u003c\/li\u003e\n\u003cli\u003eWeight: approximately 2,625 g\u003c\/li\u003e\n\u003cli\u003eBattery connector: DEANS \/ T-connect\u003c\/li\u003e\n\u003cli\u003eBattery compartment: underneath the top cover\u003c\/li\u003e\n\u003cli\u003eRecommended battery shape: stick-type\u003c\/li\u003e\n\u003cli\u003eMuzzle thread: 14 mm CCW\u003c\/li\u003e\n\u003cli\u003eMain materials: nylon-fibre-reinforced polymer, aluminium, zinc alloy and steel\u003c\/li\u003e\n\u003cli\u003eColour: Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage contents\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eSpecna Arms SA-J81 CORE™ HAL ETU Gen. 2 AEG\u003c\/li\u003e\n\u003cli\u003e2 × S-MAG mid-cap magazine\u003c\/li\u003e\n\u003cli\u003eAdditional M90 spring\u003c\/li\u003e\n\u003cli\u003eSmall Tamiya to DEANS adapter\u003c\/li\u003e\n\u003cli\u003eCleaning rod\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eActivating the HAL™ trigger before first use\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe HAL™ trigger must be activated when the battery is connected for the first time:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n\u003cli\u003eSet the fire selector to SAFE.\u003c\/li\u003e\n\u003cli\u003eConnect the battery to the rifle.\u003c\/li\u003e\n\u003cli\u003eWait approximately three seconds until the system emits a beep.\u003c\/li\u003e\n\u003cli\u003ePress and hold the trigger fully for approximately five seconds.\u003c\/li\u003e\n\u003cli\u003eRelease the trigger after the confirmation beep.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The battery and charger are not included.\u003c\/p\u003e","brand":"GF CORP SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ SPÓŁKA KOMANDYTOWA","offers":[{"title":"Default Title","offer_id":57050487488860,"sku":"SPE1152242035","price":1519.0,"currency_code":"DKK","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/6636\/2610\/files\/c79515c7c87bc3bd153a5b92df2f11b0d1a45126_SPE_01_043258_01.webp?v=1773874094","url":"https:\/\/itomairsoft.com\/en-dk\/products\/specna-arms-sa-j81-core%e2%84%a2-hal-etu-gen-2-black","provider":"Atom Airsoft","version":"1.0","type":"link"}