{"product_id":"hi-capa-mp5-hpa-adapter","title":"Kross Airsoft Design Hi-Capa MP5 HPA Adapter","description":"\u003cdiv style=\"background:linear-gradient(135deg,#e8f5e8 0%,#fff8d9 100%);border-left:5px solid #2D7A2D;padding:14px 16px;border-radius:6px;margin:0 0 16px;\"\u003e\n\u003cdiv style=\"font-size:11px;letter-spacing:0.08em;text-transform:uppercase;color:#2D7A2D;font-weight:800;margin-bottom:4px;\"\u003eMP5 MAGS ON YOUR HI-CAPA\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px;font-weight:600;color:#1c1c1c;\"\u003eDrop the small Hi-Capa mag for an MP5 stick. More capacity, more shooting time per fill.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eHi-Capas are gloriously capable pistols and abysmally short of magazine capacity. A standard Hi-Capa mag holds 30 rounds; an MP5 mid-cap holds 100+. KAD's Hi-Capa MP5 HPA adapter bridges the two — running your Hi-Capa as an HPA platform fed from full-size MP5 magazines.\u003c\/p\u003e\n\u003cp\u003eThe adapter ships in two configurations. Adapter Only suits techs and tinkerers who'll source and fit their own donor mag. Fully Assembled comes pre-built around a donor magazine — recommended for anyone who hasn't done HPA mag work before, or who simply doesn't fancy spending an evening with pin punches.\u003c\/p\u003e\n\u003cp\u003eCYMA metal mid-cap MP5 magazines are KAD's recommended donor for the cleanest feed. Other brands work but tolerances vary.\u003c\/p\u003e\n\n\u003ch2 style=\"color:#1B3A6B;font-size:19px;margin:22px 0 10px;border-bottom:1px solid #dee2e6;padding-bottom:4px;\"\u003eHow HPA changes a Hi-Capa\u003c\/h2\u003e\n\u003cp\u003eStock gas Hi-Capas are temperature-sensitive — green gas pressure drops in cold weather and the slide cycles unreliably below about 8°C. HPA converts the gun to run from a regulator at a fixed pressure year-round, so cycle rate, FPS, and trigger response stay constant from a July afternoon to a January frost. For UK skirmishers playing through autumn and winter, that's the whole reason to make the switch.\u003c\/p\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:14px 0;font-size:14px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #eee;background:#f8f9fa;font-weight:600;color:#1B3A6B;width:35%;\"\u003ePlatform\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #eee;\"\u003eHi-Capa series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #eee;background:#f8f9fa;font-weight:600;color:#1B3A6B;width:35%;\"\u003eMagazine fitment\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #eee;\"\u003eMP5 (CYMA metal mid-cap recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #eee;background:#f8f9fa;font-weight:600;color:#1B3A6B;width:35%;\"\u003eConfigurations\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #eee;\"\u003eAdapter only \/ Fully assembled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #eee;background:#f8f9fa;font-weight:600;color:#1B3A6B;width:35%;\"\u003eIncludes\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #eee;\"\u003eSingle-stack adapter, BB retention mechanism, gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #eee;background:#f8f9fa;font-weight:600;color:#1B3A6B;width:35%;\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #eee;\"\u003eKross Airsoft Design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"background:#1B3A6B;color:#ffffff;padding:14px 16px;border-radius:6px;font-size:14px;margin-top:16px;\"\u003e\n\u003cspan style=\"color:#FFD700;font-weight:700;\"\u003e🔧 Titan Forge Airsoft tip:\u003c\/span\u003e \u003cspan style=\"color:#ffffff;\"\u003eSee our full \u003ca style=\"color:#FFD700;text-decoration:underline;\" href=\"\/collections\/hpa-pistol-adaptors\"\u003eHPA pistol adapter range\u003c\/a\u003e for other platforms, and \u003ca style=\"color:#FFD700;text-decoration:underline;\" href=\"\/pages\/hpa-tech-service\"\u003ebook HPA tech support\u003c\/a\u003e if you'd like assembly handled in-house.\u003c\/span\u003e\n\u003c\/div\u003e","brand":"Kross Airsoft Design","offers":[{"title":"Fully assembled","offer_id":55545362121080,"sku":"3814672441","price":89.0,"currency_code":"GBP","in_stock":true},{"title":"Adapter only","offer_id":55545362153848,"sku":"6577955780","price":60.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/8097\/3450\/files\/TMhicapahpaadapterstraightmp5.jpg?v=1777899791","url":"https:\/\/www.titanforgeairsoft.com\/products\/hi-capa-mp5-hpa-adapter","provider":"Titan Forge Airsoft","version":"1.0","type":"link"}