{"product_id":"polarstar-fusion-engine™-drop-in-kit-m240b","title":"PolarStar Fusion Engine™ Drop-In Kit-M240B","description":"\u003ch2\u003ePolarStar Fusion Engine™ Drop-In Kit\u003c\/h2\u003e\n\u003ch3\u003eMaximum LMG Suppression. Unmatched Dual-Solenoid Firepower. Instant Drop-In Precision.\u003c\/h3\u003e\n\u003cp\u003eTurn your support weapon into an unstoppable force of continuous cover fire with the PolarStar Fusion Engine HPA Conversion System. Engineered specifically for heavy machine gun platforms, the Fusion Engine drops directly into your LMG receiver, replacing delicate, high-stress mechanical gearboxes with PolarStar’s legendary dual-solenoid electro-pneumatic technology.\u003c\/p\u003e\n\u003cp\u003eBuilt for sustained, high-volume fire without the mechanical wear or heat build-up that destroys standard AEG gearboxes, the Fusion Engine allows support gunners to hold down choke points, suppress entire lanes, and maintain laser-flat trajectory downrange. Featuring complete FCU programmability, you can dial in your exact Rate of Fire and velocity to match your squad's rules of engagement.\u003c\/p\u003e\n\u003ch3\u003eVariant Options Available\u003c\/h3\u003e\n\u003ch4\u003eM249 SAW Platform:\u003c\/h4\u003e\n\u003cp\u003eEngineered specifically for A\u0026amp;K, Classic Army, Featherweight, and standard M249 SAW\/MK46\/Para machine gun receivers.\u003c\/p\u003e\n\u003ch4\u003eM240B Platform:\u003c\/h4\u003e\n\u003cp\u003eCustom-tailored geometry for A\u0026amp;K\/Matrix M240B medium machine gun platforms.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop-In Machined Aluminium Chassis:\u003c\/strong\u003eReplaces the stock cast alloy LMG gearbox with a rugged CNC-machined aluminium housing designed to handle heavy field use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Solenoid High-Volume System:\u003c\/strong\u003eIndependent poppet valve and nozzle timing yield extreme consistency, instant trigger response, and reliable feeding on box magazines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull FCU Programmability:\u003c\/strong\u003eThe included Fire Control Unit (FCU) with LCD screen lets you fine-tune Rate of Fire (1–60+ RPS), Nozzle Dwell, and Burst\/Full-Auto firing profiles on the fly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool-less Velocity Adjustment:\u003c\/strong\u003eAdjust your FPS instantly by changing your HPA regulator pressure (45–145 PSI) or swapping color-coded poppet valves\/nozzles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosed-Bolt Consistency:\u003c\/strong\u003eDelivers match-grade shot-to-shot velocity consistency, maximizing accuracy and range during sustained suppression bursts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero Mechanical Wear:\u003c\/strong\u003eEliminates stripped gears, cracked shell casings, and piston stripping associated with high-ROF support weapon gearboxes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFusion Engine HPA Machine Gun Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable Variants\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM249 SAW\/M240B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e45 – 145 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVelocity\/FPS Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300 – 500+ FPS (Adjustable via PSI \u0026amp; Nozzles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRate of Fire (ROF)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 to 60+ RPS (Programmable via FCU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHPA Rig (Tank + Regulator) \u0026amp; 7.4v LiPo FCU Battery (JST)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAircraft-Grade CNC Machined Aluminium Shell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"PolarStar","offers":[{"title":"Default Title","offer_id":56906641015170,"sku":"10000995","price":519.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/8224\/7217\/files\/PolarStarFusionEngine_Drop-InKit-M240B.webp?v=1789224556","url":"https:\/\/killerinstinctairsoft.co.uk\/products\/polarstar-fusion-engine%e2%84%a2-drop-in-kit-m240b","provider":"Killer Instinct Tactical","version":"1.0","type":"link"}