{"product_id":"sa-f04-flex-gen-2-hal-etu-airsoft-rifle-olive","title":"SA-F04 FLEX Gen.2 HAL ETU Airsoft rifle Olive","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the SA-F04 FLEX Gen.2 HAL ETU airsoft carbine in Olive — a meticulously engineered Specna Arms platform designed to elevate performance, reliability, and field versatility. Grounded in Specna Arms’ reputation for precision, every component on this Gen.2 FLEX model has been redesigned to outpace the demands of intense skirmishes while remaining accessible to players who want out-of-the-box readiness and long-term upgrade potential.\u003c\/p\u003e \u003cimg class=\"qmark showTip\" src=\"https:\/\/gunfire.com\/gfx\/standards\/qmark2.gif?r=1773830213\" alt=\"\" title=\"\"\u003e\n\u003cimg class=\"qmark showTip\" src=\"https:\/\/gunfire.com\/gfx\/standards\/qmark2.gif?r=1773830213\" alt=\"\" title=\"\"\u003e\n\u003cimg class=\"qmark showTip\" src=\"https:\/\/gunfire.com\/gfx\/standards\/qmark2.gif?r=1773830213\" alt=\"\" title=\"\"\u003e\n\u003cimg class=\"qmark showTip\" src=\"https:\/\/gunfire.com\/gfx\/standards\/qmark2.gif?r=1773830213\" alt=\"\" title=\"\"\u003e\n\u003cimg class=\"qmark showTip\" src=\"https:\/\/gunfire.com\/gfx\/standards\/qmark2.gif?r=1773830213\" alt=\"\" title=\"\"\u003e \u003ch3\u003eWhy this Flex Gen.2 stands out\u003c\/h3\u003e\n\u003cp\u003eThe Flex Gen.2 platform is built around a modular, high-strength chassis that combines nylon-fibre reinforced polymer with critical metal components. This pairing delivers a light, balanced feel without sacrificing durability, making it ideal for rapid transitions between CQB and longer-range engagements. The olive finish provides a tactical, non-reflective profile that blends into woodland and urban environments alike.\u003c\/p\u003e \u003ch3\u003eAdvanced internals for precision and consistency\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTop Down Center Hop-Up (TDC Magnus) chamber\u003c\/strong\u003e with a European Patent (015052069-0001) for ultra-stable, repeatable BB release and fine-tuning of backspin for accuracy at varied ranges.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHelium Flat Hop Eraser\u003c\/strong\u003e to improve the stability of the BB’s undercurve, reducing hop variance across shots.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAluminium sealed nozzle\u003c\/strong\u003e for consistent air seal and reduced shot-to-shot inconsistencies.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eÆther™ Gearbox\u003c\/strong\u003e with a reinforced frame and pre-cocking AoE inspection windows — designed for long-life operation and easier maintenance checks.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e8mm plain bearings and steel gears\u003c\/strong\u003e paired with a polycarbonate piston with full steel slats and a high-precision 6.03mm barrel for reliable, accurate shoots.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eESA™ quick spring change system\u003c\/strong\u003e enabling rapid power changes on the field to adapt to different play areas without tools.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHAL ETU — intelligent fire control and programmability\u003c\/h3\u003e\n\u003cp\u003eThe HAL™ (Hardware Aware Logic) ETU system brings smart control to your rifle with magnetic sensor-based trigger detection and Hall effect actuation. It delivers an active brake, a binary trigger option, and highly adjustable trigger sensitivity (5 levels from 20% to 100%), giving you tactile, predictable trigger feel. The HAL ETU also includes:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAdjustable pre-cocking across 6 levels for improved shot consistency, especially in semi- or burst-fire modes.\u003c\/li\u003e \u003cli\u003eAuto programmable fire modes (full auto, semi, 3-round burst, 5-round burst) and semi-programmable modes (semi, binary, AUG, sniper) for adaptable engagements.\u003c\/li\u003e \u003cli\u003eEasy programming via trigger interface and a built-in low battery alarm to prevent mid-game drop-offs.\u003c\/li\u003e \u003cli\u003eCompatibility with brushless motors for cleaner power delivery and extended motor life.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eErgonomics, handling, and field-ready features\u003c\/h3\u003e\n\u003cp\u003eThe HAL ETU-equipped rifle uses a durable, lightweight chassis that minimizes fatigue during extended games. The Light Ops Stock provides a sleek, low-weight silhouette with a modern design and non-slip rubber cheek stickers for secure aiming. The distinctive curved rubber stock foot sits comfortably against the shoulder, helping maintain a stable sight picture during rapid follow-up shots. Other noteworthy design elements include enlarged manipulators on both sides (selector and magazine release) and a functional bolt-catch for intuitive operation under pressure.\u003c\/p\u003e \u003ch3\u003ePerformance-oriented build details\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSpecna Arms proprietary 6.03mm precision barrel\u003c\/strong\u003e for consistent accuracy and tight groupings at typical skirmish ranges.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMetal externals and reinforced frame\u003c\/strong\u003e coupled with a nylon reinforced body result in a robust platform capable of withstanding frequent field use.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReady for M140 springs\u003c\/strong\u003e to meet higher-power field regulations while maintaining reliability under load.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInternal design highlights\u003c\/strong\u003e include 8mm bearings, a press-fit nozzle, and carefully chosen materials that balance weight with durability for real-world play.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eQuick-swap compatibility\u003c\/strong\u003e with common upgrade paths and accessories, ensuring your rifle remains competitive as you refine your loadout.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho this rifle is ideal for\u003c\/h3\u003e\n\u003cp\u003eAmbitious players who want a high-performance platform out of the box, with room to tune and customize as they gain experience. It’s perfect for players who value field adaptability, long-term reliability, and a system that supports advanced fire modes and battery options. Whether you’re building a precision setup for mid-range engagements or a fast-response CQB carbine, the SA-F03 FLEX Gen.2 HAL ETU Olive is designed to scale with your skills.\u003c\/p\u003e \u003ch3\u003eMaintenance and best-practice tips\u003c\/h3\u003e\n\u003cp\u003eRegular lubrication of moving parts, periodic inspection of the reinforced frame, and checks of the hop-up and nozzle seal will keep this platform performing at peak levels. Take advantage of the ESA™ quick spring change system to experiment with different spring configurations in different field scenarios. Always verify battery compatibility with the HAL ETU and ensure a brushless motor setup is properly configured to avoid overheating during extended games.\u003c\/p\u003e \u003cp\u003eFor more about related gear, explore the Specna Arms collection (collections\/specna-arms) and related fields such as high-performance carbines (collections\/airsoft-carbines). You can also find HAL ETU upgrade paths and compatible options in the HAL ETU family (collections\/hal-etu).\u003c\/p\u003e \u003cbr\u003e \u003ctable class=\"n54117_dictionary\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a1\"\u003e\n\u003cspan\u003eBattery included\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\u003cimg class=\"qmark showTip\" src=\"https:\/\/gunfire.com\/gfx\/standards\/qmark2.gif?r=1773830213\" alt=\"\" title=\"\"\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b1\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003eNo\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a2\"\u003e\n\u003cspan\u003eBearings diameter [mm]\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b2\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003e8\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a1\"\u003e\n\u003cspan\u003eBlow Back\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\u003cimg class=\"qmark showTip\" src=\"https:\/\/gunfire.com\/gfx\/standards\/qmark2.gif?r=1773830213\" alt=\"\" title=\"\"\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b1\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003eNo\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a2\"\u003e\n\u003cspan\u003eColour\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b2\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003eOlive\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a1\"\u003e\n\u003cspan\u003eProduct length [cm]\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b1\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003e75.50\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a2\"\u003e\n\u003cspan\u003eProduct weight [g]\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b2\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003e2145\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a1\"\u003e\n\u003cspan\u003ePower supply\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b1\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003eElectric\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a2\"\u003e\n\u003cspan\u003eMaterial\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b2\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003eAluminum\u003c\/div\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003ePlastic\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a1\"\u003e\n\u003cspan\u003eMuzzle velocity [FPS]\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\u003cimg class=\"qmark showTip\" src=\"https:\/\/gunfire.com\/gfx\/standards\/qmark2.gif?r=1773830213\" alt=\"\" title=\"\"\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b1\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003e410\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a2\"\u003e\n\u003cspan\u003eFire mode\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b2\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003eFull-auto\u003c\/div\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003eAdjusted burst\u003c\/div\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003eSemi-auto\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a1\"\u003e\n\u003cspan\u003eGearbox version\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\u003cimg class=\"qmark showTip\" src=\"https:\/\/gunfire.com\/gfx\/standards\/qmark2.gif?r=1773830213\" alt=\"\" title=\"\"\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b1\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003eGearbox v2\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a2\"\u003e\n\u003cspan\u003eHop-Up\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\u003cimg class=\"qmark showTip\" src=\"https:\/\/gunfire.com\/gfx\/standards\/qmark2.gif?r=1773830213\" alt=\"\" title=\"\"\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b2\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003eYes\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a1\"\u003e\n\u003cspan\u003eInner barrel length [mm].\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b1\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003e230\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a2\"\u003e\n\u003cspan\u003eLength minimal [mm]\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b2\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003e670\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a1\"\u003e\n\u003cspan\u003eMagazine capacity [pcs.]\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b1\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003e125\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a2\"\u003e\n\u003cspan\u003eMOSFET\/ETU\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b2\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003eYes\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a1\"\u003e\n\u003cspan\u003eQuick Spring Change system\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b1\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003eYes\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a2\"\u003e\n\u003cspan\u003eType of plug\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b2\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003eDEANS \/ T-connect\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"element\"\u003e\n\u003ctd class=\"n54117_item_a1\"\u003e\n\u003cspan\u003eType of thread on the barrel\u003c\/span\u003e\u003cspan class=\"n67256colon\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd class=\"n54117_item_b1\"\u003e\n\u003cdiv class=\"n54117_item_b_sub\"\u003e14mm CCW\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Specna Arms","offers":[{"title":"Default Title","offer_id":52998340477266,"sku":"SPE-01-048447","price":181.47,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8454\/7507\/files\/9d11d8c6f84d5831c2dda67246b926d11696d5b8_SPE_01_048447_0000.webp?v=1774202010","url":"https:\/\/airsoftmania.eu\/fr-pt\/products\/sa-f04-flex-gen-2-hal-etu-airsoft-rifle-olive","provider":"Airsoft Mania Europe","version":"1.0","type":"link"}