{"title":"Rifle FCUs","description":"","products":[{"product_id":"polarstar-f2-hpa-engine","title":"PolarStar F2 Dual-Solenoid HPA Engine Conversion Kit","description":"\u003ch2\u003ePolarStar F2 HPA Engine Conversion Kit\u003c\/h2\u003e\n\u003cp\u003eUpgrade your airsoft rifle with the PolarStar F2 HPA Engine, a compact dual-solenoid system engineered for exceptional consistency, efficiency, and complete performance control.\u003c\/p\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eOften described as a cylinder-sized Fusion Engine, the PolarStar F2 independently controls nozzle movement and air release through its patented dual-solenoid design. This allows precise adjustment of loading time and air volume while supporting both true closed-bolt and traditional AEG-style firing sequences. Its lightweight one-piece poppet valve operates efficiently at lower pressures, while the spring-loaded nozzle delivers consistent loading force across the operating range.\u003c\/p\u003e\n\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eDual-solenoid design for advanced performance tuning\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdjustable closed-bolt and AEG firing modes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e45–145 PSI operating-pressure range\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCQB-to-DMR velocity adjustment without changing nozzles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUp to approximately 30 rounds per second\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEfficient airflow for excellent shot capacity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompact, lightweight cylinder-style construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBroad AEG gearbox compatibility\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003eThe F2 can produce approximately 280–480 FPS with 0.20g BBs in a standard M4 configuration, depending on pressure, barrel length, air seal, and setup. PolarStar rates the system for 1,000-plus shots from a 13\/3000 tank at 1.5 joules under its published test configuration.\u003c\/p\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eAvailable configurations support numerous platforms, including Version 2 M4\/M16, Version 3 AK, M249, ARES M4, ARES EFCS\/APS eSE, VFC HK417\/G28, KAC LMG, and M60 gearboxes. Select the correct model and nozzle configuration for your replica.\u003c\/p\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cp\u003eIncludes the configured F2 engine, installed filter fitting, FCU, switchboard, wiring harness, and model-specific conversion components. HPA tank, regulator, air line, and FCU battery are sold separately.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eProfessional installation and tuning are recommended to ensure correct alignment, air sealing, wiring, and safe operation.\u003c\/p\u003e\n\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e","brand":"PolarStar","offers":[{"title":"Default Title","offer_id":43599736373318,"sku":"10000258","price":439.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/2223\/6742\/files\/F2-1.jpg?v=1753350581"},{"product_id":"polarstar-jack-engine","title":"PolarStar JACK HPA Engine Conversion Kit","description":"\u003ch1\u003ePolarStar JACK HPA Engine Conversion Kit\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eUpgrade your AEG with the PolarStar JACK HPA Engine, an affordable electro-pneumatic conversion system engineered for fast trigger response, adjustable performance, reliable operation, and simplified maintenance.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe PolarStar JACK replaces your AEG’s mechanical gearbox components with a programmable HPA system. Its compact drop-in cylinder design uses only one moving component—the nozzle, which also functions as the poppet valve. This streamlined construction delivers strong airflow, rapid response, consistent shooting, and dependable operation with fewer wear-prone parts.\u003c\/p\u003e\n\u003cp\u003eVelocity is adjusted through input pressure and FCU settings, allowing the JACK to accommodate CQB, outdoor, and competitive airsoft requirements. In a standard M4 configuration, PolarStar reports adjustment from below 280 FPS to approximately 500 FPS with 0.20g BBs, depending on barrel length, bore, pressure, and tuning.\u003c\/p\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eProgrammable semi-auto, full-auto, and burst fire modes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstant trigger response with adjustable rate of fire\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUp to approximately 30 rounds per second\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEfficient design capable of 1,000+ shots from a 13\/3000 tank\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEasy velocity adjustment without changing nozzles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDurable, low-maintenance single-moving-part design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFilter fitting helps protect the internal HPA system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSystem:\u003c\/strong\u003e Electro-pneumatic HPA engine\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Velocity:\u003c\/strong\u003e Approximately 500 FPS at 130 PSI with 0.20g BBs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Rate of Fire:\u003c\/strong\u003e Approximately 30 RPS\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFire Control:\u003c\/strong\u003e Programmable FCU\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PolarStar Airsoft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eAvailable for multiple center-line-nozzle gearbox platforms, including V2 M4\/M16, V3 AK, M249, ARES, VFC HK417\/G28, TAR-21, KAC LMG, and M60 configurations. Select the correct model for your replica.\u003c\/p\u003e\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cp\u003eJACK HPA engine, installed filter fitting, FCU, switchboard, wiring harness, and model-specific conversion components. HPA tank, regulator, air line, and FCU battery are sold separately.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cp\u003eGearbox disassembly, engine alignment, FCU setup, and performance tuning are required. Professional installation is recommended for optimal reliability and air-seal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"PolarStar","offers":[{"title":"Default Title","offer_id":43599736537158,"sku":"10000259","price":274.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/2223\/6742\/files\/Jack-Engine-1.jpg?v=1753350585"},{"product_id":"polarstar-fusion-engine-v2-gen-3-drop-in-kit","title":"PolarStar Fusion Engine V2 Gen 3 Drop-In HPA Conversion Kit for M4\/M16 AEGs","description":"\u003ch1\u003ePolarStar Fusion Engine V2 Gen 3 Drop-In HPA Kit\u003c\/h1\u003e\n\u003cp\u003eTransform your compatible M4 or M16 AEG into a highly adjustable HPA airsoft rifle with the PolarStar Fusion Engine V2 Gen 3. This complete electro-pneumatic system delivers immediate trigger response, consistent performance, and exceptional tuning capability.\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe PolarStar Fusion Engine is a premium drop-in HPA conversion kit that replaces the complete Version 2 AEG gearbox. Its lightweight CNC-machined aluminum chassis houses a dual-solenoid, closed-bolt system that independently controls the nozzle and poppet valve. This allows players to fine-tune BB loading, air volume, velocity, and rate of fire for CQB, outdoor, or specialized builds.\u003c\/p\u003e\n\u003cp\u003eTrue closed-bolt operation promotes dependable accuracy, while the frame-mounted trigger microswitch provides a defined break, short reset, and responsive firing feel. Velocity can be adjusted through input pressure, with optional color-coded nozzles available for larger performance-range changes.\u003c\/p\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eDual-solenoid electro-pneumatic HPA system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCNC-machined aluminum gearbox chassis\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndependently adjustable nozzle and poppet timing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdjustable velocity and 30+ RPS capability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFast trigger response with programmable FCU\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReliable performance across changing temperatures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with standard AEG hop-ups, barrels, and magazines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEngine Type:\u003c\/strong\u003e Dual-solenoid, closed-bolt HPA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGearbox Configuration:\u003c\/strong\u003e Version 2 Gen 3\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRate of Fire:\u003c\/strong\u003e 30+ rounds per second\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Performance:\u003c\/strong\u003e Up to 550 FPS with 0.20g BBs at 120 PSI, configuration dependent\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e PolarStar Airsoft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eConfigured for compatible Version 2 M4\/M16 AEG platforms. Fitment or additional components may be required for other Version 2 replicas.\u003c\/p\u003e\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cp\u003eFusion Engine assembly, installed filter fitting, FCU, switchboard, wire harness, and model-specific conversion components. HPA tank, regulator, air line, and FCU battery are sold separately.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cp\u003eProfessional installation and proper system tuning are recommended for reliable alignment, feeding, and air efficiency.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"PolarStar","offers":[{"title":"Default Title","offer_id":43599736569926,"sku":"10000434","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/2223\/6742\/files\/Fusion-1.jpg?v=1753350586"},{"product_id":"gorilla-mfcu","title":"Gorilla MFCU (Magnetic Trigger Board + FCU)","description":"\u003cp dir=\"ltr\" data-test-bidi=\"\"\u003eThe Gorilla MFCU is not a fire control unit as you know it but designed to fit HPA gearboxes and be a triggerboard at the same time. The Gorilla FCU allows you to replace the FCU’s of the most widely used HPA systems on the market, whether they are single solenoids or double solenoids. Without removing any functions, even adding some! This Gorilla mFCU is compatible with features:\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n \t\u003cli\u003eMagnetic selector plate\u003c\/li\u003e\r\n \t\u003cli\u003eMagnet holder for trigger\u003c\/li\u003e\r\n \t\u003cli\u003e2x solenoids cables\u003c\/li\u003e\r\n \t\u003cli\u003e1x mFCU\u003c\/li\u003e\r\n \t\u003cli\u003eF2, Inferno, and Jack\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"Gorilla","offers":[{"title":"Default Title","offer_id":43599739158598,"sku":"GORILLA-MFCU","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/2223\/6742\/files\/Gorilla-MFCUU.jpg?v=1753350643"},{"product_id":"wolverine-inferno-gen-2","title":"Wolverine Inferno Gen 2 for V2","description":"The INFERNO Gen 2 features a revolutionary single solenoid, independent poppet and nozzle design that sets a new standard for a drop in kit. This engine is efficient and built to perform to your likings and needs! You can easily control your fire control settings through your fire control unit (FCU)  to perfect the engine to your setup!\r\n\u003cul\u003e\r\n \t\u003cli\u003eDrop-in\u003c\/li\u003e\r\n \t\u003cli\u003eEfficient\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n ","brand":"Wolverine","offers":[{"title":"Default Title","offer_id":43599744598086,"sku":"NFR-CA-012-M4-SPN-SKU","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/2223\/6742\/files\/Inferno-v2-m4.png?v=1753350686"},{"product_id":"backdraft-innovations-phoenix-hpa-engine-fcu","title":"Backdraft Innovations Phoenix M4 HPA Engine + FCU","description":"\u003ch1\u003eBackdraft Phoenix M4 HPA Engine + Catalyst Gen 2 FCU\u003c\/h1\u003e\n\u003cp\u003eConvert your compatible M4 AEG into a fast, responsive HPA airsoft platform with programmable fire modes, efficient airflow, and an impressive 40+ rounds-per-second capability.\u003c\/p\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Backdraft Phoenix M4 HPA Engine is an affordable electronic HPA conversion system designed for most Version 2 gearbox airsoft rifles. Its responsive pneumatic operation provides rapid trigger response, consistent cycling, and tunable performance for competitive play, speedsoft, and recreational skirmishing.\u003c\/p\u003e\n\u003cp\u003ePaired with the included Catalyst Gen 2 Fire Control Unit, the Phoenix supports safe, semi-automatic, full-automatic, binary, two-round burst, and three-round burst modes. The system can achieve rates of fire exceeding 40 RPS when properly configured, while adjustable regulator pressure and FCU settings allow users to tune performance for their replica and field limits.\u003c\/p\u003e\n\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eResponsive electronic HPA operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCapable of 40+ rounds per second\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMultiple programmable fire modes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEfficient airflow for improved shot capacity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQuick-disconnect inner grip line\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eComplete M4\/V2 conversion package\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eEngine length with nozzle: approximately 90mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaximum input pressure: 130 PSI\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNozzle: Backdraft #01\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInner grip line: approximately 235mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturer: Backdraft Innovations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDesigned for most M4-style AEGs using Version 2 gearboxes. The included #01 nozzle is intended for common M4 and MP5 configurations; fitment can vary between manufacturers, and another nozzle length may be required.\u003c\/p\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ePhoenix HPA engine with #01 nozzle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCatalyst Gen 2 FCU\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eM4 trigger board\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSelected wire harness\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInner grip line with quick-disconnect fitting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstruction manual\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eInstallation requires opening the gearbox, removing the original electric components, and correctly aligning the engine and nozzle. Professional installation and chronograph tuning are recommended. HPA tank, regulator, remote line, and FCU battery are sold separately.\u003c\/p\u003e","brand":"Backdraft Innovations","offers":[{"title":"Default Title","offer_id":46598704955462,"sku":null,"price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/2223\/6742\/files\/backdraftengine_3.jpg?v=1789769055"},{"product_id":"backdraft-innovations-catalyst-wireless-fcu","title":"Backdraft Innovations Catalyst Wireless FCU + Trigger Board","description":"\u003ch1\u003eBackdraft Catalyst Wireless HPA FCU Kit – App-Controlled Fire Control Unit\u003c\/h1\u003e\n\u003cp\u003eControl and customize your HPA airsoft build from your smartphone with an efficient wireless FCU featuring advanced engine tuning, accessory control, and support for multiple gearbox platforms.\u003c\/p\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Backdraft Catalyst Wireless FCU is a compact, low-energy fire control unit designed to provide convenient app-based management of compatible electronic HPA systems. Its intuitive companion app supports both iOS and Android, allowing players and technicians to adjust performance settings without accessing controls inside the replica.\u003c\/p\u003e\n\u003cp\u003eModern, high-efficiency electronics and ultra-low power consumption provide dependable operation while leaving room for continued software features and updates. Dual-solenoid capability supports a wider range of HPA engines, while precision-wound magazine control and an integrated tracer output help streamline advanced airsoft builds.\u003c\/p\u003e\n\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWireless tuning through an intuitive mobile app\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with iOS and Android devices\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEfficient, ultra-low-power electronics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSingle- and dual-solenoid engine support\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePrecision-wound magazine control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBuilt-in tracer-unit output\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMultiple harness configurations available\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Wireless HPA fire control unit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Backdraft Innovations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eControl Interface:\u003c\/strong\u003e Wireless companion app\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMobile Support:\u003c\/strong\u003e iOS and Android\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSolenoid Support:\u003c\/strong\u003e Single or dual solenoid\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTrigger Board Options:\u003c\/strong\u003e V2, V3, or LMG\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHarness Options:\u003c\/strong\u003e Long external single-solenoid, long external dual-solenoid, or internal dual-solenoid\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eCompatible with supported electronic HPA engines using the appropriate harness and trigger board. V2 trigger boards are intended for M4-style gearboxes, while V3 boards support compatible AK-style gearboxes. Confirm engine, harness, and gearbox compatibility before installation.\u003c\/p\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eBackdraft Catalyst Wireless FCU\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOne selected wire harness\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOne selected V2, V3, or LMG trigger board\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eInternal gearbox access and electronic HPA experience are recommended. Professional installation may be necessary, as fitment or modification can vary between replicas.\u003c\/p\u003e","brand":"Backdraft Innovations","offers":[{"title":"Default Title","offer_id":46598742409286,"sku":null,"price":124.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/2223\/6742\/files\/BackdraftFCU_1.jpg?v=1789769661"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/2223\/6742\/collections\/Fusion-1.jpg?v=1794285922","url":"https:\/\/laairsoft.com\/collections\/rifle-fcus.oembed","provider":"LA Airsoft","version":"1.0","type":"link"}