{"product_id":"airsoft-helden-hr556-10-s-hpa","title":"Airsoft Helden HR556 10\" S-HPA","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMechanical HPA operating platform\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e10\" rifle configuration\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMechLabs XX-Mod mechanical HPA engine\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eT6 aluminium and reinforced polymer receiver set\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eReceiver alignment designed specifically for the mechanical HPA system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAluminium lower handguard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eM-LOK interface system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e4 M-LOK slots at 3 and 9 o'clock positions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e5-slot lower accessory rail section at 6 o'clock\u003c\/li\u003e\n\u003cli\u003e20mm flat-top for optic attachments\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFull-auto firing capability\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBattery-free operation\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNo ETU system required\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePlug-and-play HPA functionality\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlim and lightweight external design\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdjustable performance tuning system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdjustable travel distance\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdjustable air consumption\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdjustable RPS settings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDesigned for easy maintenance access\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cu\u003eLong Description:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe Airsoft Helden HR556 10\" Black S-HPA is a mechanically operated HPA airsoft rifle platform developed from years of direct player interaction, event feedback and real-world gameplay experience gathered through Airsoft Helden events across Europe.\u003cbr\u003e\u003cbr\u003eRather than focusing on electronics-heavy systems or complicated setup procedures, the HR556 was designed around a clear philosophy: dependable mechanical performance, efficient HPA operation and simplified maintenance. The platform removes the need for batteries and electronic trigger systems, allowing players to connect their HPA setup and focus directly on gameplay.\u003cbr\u003e\u003cbr\u003eAt the centre of the system is the MechLabs XX-Mod mechanical HPA engine, developed to provide consistent firing performance with user-adjustable tuning options. The system supports travel distance adjustment, air consumption tuning and RPS configuration, allowing players to fine-tune the rifle around their preferred shooting characteristics while maintaining a mechanically driven operating system.\u003cbr\u003e\u003cbr\u003eThe receiver set combines T6 aluminium with reinforced polymer construction, specifically engineered around the alignment requirements of the mechanical HPA engine. This construction approach helps maintain structural stability while keeping the platform slim and lightweight for practical use during longer gameplay sessions.\u003cbr\u003e\u003cbr\u003eThe aluminium lower handguard features an integrated M-LOK mounting system with four M-LOK interface positions at the 3 and 9 o'clock sections, alongside a 5-slot lower accessory rail at the 6 o'clock position. This layout allows users to configure grips, lights and additional accessories while maintaining a clean and streamlined external profile. The 20mm flat-top rail provides plenty of real-estate for game enhancing optics.\u003cbr\u003e\u003cbr\u003eAirsoft Helden positions the HR556 as more than simply another rifle release. The platform was shaped through direct community involvement, player testing and continuous development feedback throughout the prototype phase leading into its official launch at IWA 2026. The result is a mechanical HPA platform designed around practical airsoft use, serviceability and adaptable field performance.\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e\u003cu\u003eBrand Statement:\u003c\/u\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eAirsoft Helden is one of Europe’s leading airsoft event and community brands, built around immersive gameplay, player-driven experiences and real-world field insight. With over 14 years of involvement in the airsoft industry, Airsoft Helden combines large-scale events, community engagement and product development to create equipment and experiences shaped directly by active players and practical gameplay requirements.\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eLarge-scale European airsoft event organiser\u003c\/li\u003e\n\u003cli\u003eCreators of the Dark Emergency airsoft event series\u003c\/li\u003e\n\u003cli\u003ePlayer-driven product development philosophy\u003c\/li\u003e\n\u003cli\u003eFocused on immersive and realistic gameplay experiences\u003c\/li\u003e\n\u003cli\u003eStrong community and social media presence\u003c\/li\u003e\n\u003cli\u003eDeveloped through real-world gameplay feedback\u003c\/li\u003e\n\u003cli\u003ePerformance-focused airsoft equipment and platforms\u003c\/li\u003e\n\u003cli\u003ePartnership with MechLabs mechanical HPA systems\u003c\/li\u003e\n\u003cli\u003eEmphasis on reliability, usability and field practicality\u003c\/li\u003e\n\u003cli\u003eDesigned by active airsoft players for active gameplay\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Airsoft Helden","offers":[{"title":"Default Title","offer_id":57123572941124,"sku":"ASH-111548","price":599.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0847\/6465\/5940\/files\/ash-111548_1.jpg?v=1787154581","url":"https:\/\/highpressureairsoft.co.uk\/products\/airsoft-helden-hr556-10-s-hpa","provider":"HPA-UK","version":"1.0","type":"link"}