{"product_id":"airtac-hpa-adapter-vfc-umarex-mp7-to-m4-magazine-modular","title":"AirTac HPA Adapter — VFC\/Umarex MP7 to M4 Magazine (Modular)","description":"\u003cdiv style=\"background: #fffbe6; border-left: 4px solid #f0d060; padding: 12px 16px; border-radius: 0 6px 6px 0; margin: 0 0 16px; font-size: 13px;\"\u003e\n\u003cstrong\u003e⚠ VFC OEM MP7 platforms only.\u003c\/strong\u003e This adapter is designed and tested for the VFC \/ Umarex MP7 (VFC OEM). It is not compatible with other MP7 platforms. If you are unsure whether your MP7 is VFC OEM spec, \u003ca href=\"\/pages\/contact-us\" style=\"color: #7d4e00; font-weight: bold;\"\u003ecall us on 01494 911990\u003c\/a\u003e before ordering.\u003c\/div\u003e\n\u003cp\u003eThe VFC\/Umarex MP7 is a compact, high-quality GBB platform — but gas magazines in a sub-machine gun form factor bring a particular set of limitations. Shorter magazines mean less gas volume, less buffer against temperature-related FPS drops, and faster mag-change frequency. The AirTac MP7 to M4 HPA Adapter resolves all of this at once: it replaces the gas magazine with a plug-and-play HPA unit that feeds from a standard M4 AEG magazine, significantly increasing ammunition capacity while delivering the flat, consistent FPS output that HPA is known for regardless of ambient temperature.\u003c\/p\u003e\n\u003cp\u003eThe adapter arrives fully assembled. The valve, feed lips, and NBR gas router are all pre-installed — no donor gas magazine needed, no assembly required. The gas router is manufactured to VFC MP7 specification, meaning it seals correctly in the MP7's gas route without modification. Both the factory VFC MP7 feed lips and aftermarket equivalents are compatible, simplifying long-term maintenance. Every unit is individually tested in a VFC MP7 platform before dispatch, confirming correct feeding, function, and consistent operation on the exact platform it is designed for.\u003c\/p\u003e\n\u003cp\u003eThe injection-moulded polycarbonate magwell is built for impact resistance and long-term durability — impervious to BB strikes at point-blank skirmish FPS in normal use. A swappable rear shim is included to fine-tune fitment across different M4 magazine brands, accommodating the dimensional variation between manufacturers. PTS EPM1 is the recommended magazine for best spring tension and feeding consistency, though most standard M4 AEG magazines will work.\u003c\/p\u003e\n\u003cp\u003eOperating pressure sits comfortably at 90–110psi for field-legal outputs, with a 150psi maximum. The pre-installed US Foster fitting connects directly to any standard HPA line without adapters or modifications. The modular system allows configuration with alternative magwell bases if you want to run MP5 or shotgun shell magazines instead.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 16px; color: #1b3a6b; margin: 18px 0 8px;\"\u003eMP7 to M4 vs MP7 to MP5 — choosing your format\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; margin: 0 0 18px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #1B3A6B; color: #fff;\"\u003e\n\u003cth style=\"padding: 7px 12px; text-align: left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding: 7px 12px; text-align: left;\"\u003eMP7 to M4 (this) — £129.95\u003c\/th\u003e\n\u003cth style=\"padding: 7px 12px; text-align: left;\"\u003e\u003ca href=\"#mp7-mp5\" style=\"color: #cdd6f4;\"\u003eMP7 to MP5 — £119.95\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eMagazine format\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eStandard M4 AEG\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eMP5 \/ SMG-5 format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eMagwell construction\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eInjection-moulded polycarbonate\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eCNC aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eProfile \/ aesthetics\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eLarger M4 mag — maximum capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eSlimmer MP5 mag — more compact look\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eBest for\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eHigh capacity, easy mag sourcing\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eCompact loadout, streamlined aesthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"font-size: 16px; color: #1b3a6b; margin: 18px 0 8px;\"\u003eWhat you need to run this adapter\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; margin: 0 0 18px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #1B3A6B; color: #fff;\"\u003e\n\u003cth style=\"padding: 7px 12px; text-align: left;\"\u003eItem\u003c\/th\u003e\n\u003cth style=\"padding: 7px 12px; text-align: left;\"\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eHPA tank\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eAny standard HPA tank — see \u003ca href=\"\/collections\/hpa-tanks\" style=\"color: #1b3a6b;\"\u003eHPA Tanks\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eSecondary regulator\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003e\n\u003ca href=\"\/products\/airtac-at200-regulator\" style=\"color: #1b3a6b;\"\u003eAirTac AT200\u003c\/a\u003e or equivalent — always required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eHPA line\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eUS Foster fitting line — see \u003ca href=\"\/collections\/hpa-lines\" style=\"color: #1b3a6b;\"\u003eHPA Lines\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eM4 AEG magazine\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003ePTS EPM1 recommended — most standard M4 mags compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"font-size: 16px; color: #1b3a6b; margin: 18px 0 8px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; margin: 0 0 18px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #1B3A6B; color: #fff;\"\u003e\n\u003cth style=\"padding: 7px 12px; text-align: left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 7px 12px; text-align: left;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eSKU\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eAT-MP7-M4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eEAN\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003e5056444747235\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003ePlatform compatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eVFC \/ Umarex MP7 (VFC OEM only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eArchitecture\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003ePlug-and-play — no donor parts required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003ePre-shipment testing\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eEvery unit tested in a VFC MP7 before dispatch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eMagwell construction\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eInjection-moulded polycarbonate — high impact resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eGas router\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eInjection-moulded NBR to VFC MP7 spec — OEM compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eValve\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eHigh-flow — pre-installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eMagazine compatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eStandard M4 AEG magazines; PTS EPM1 recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eFitment adjustment\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eSwappable rear shim included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eRecommended operating pressure\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003e90–110psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eMaximum operating pressure\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003e150psi — do not exceed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eHPA fitting\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eUS Foster — pre-installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eModular system\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eYes — compatible with alternative magwell bases\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eLifetime (AirTac)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eAirTac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"font-size: 16px; color: #1b3a6b; margin: 18px 0 8px;\"\u003ePackage Contents\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; margin: 0 0 18px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #1B3A6B; color: #fff;\"\u003e\n\u003cth style=\"padding: 7px 12px; text-align: left;\"\u003eItem\u003c\/th\u003e\n\u003cth style=\"padding: 7px 12px; text-align: left;\"\u003eQty\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eAirTac MP7 to M4 HPA Adapter (fully assembled, pre-tested)\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eRear shim (swappable for fitment tuning)\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background: #1B3A6B; color: #fff; padding: 12px 16px; border-radius: 6px; margin: 18px 0 0; font-size: 13px;\"\u003e\n\u003cstrong style=\"color: #fff;\"\u003e🔧 Titan Forge Airsoft tip:\u003c\/strong\u003e The MP7 to M4 adapter is the most straightforward HPA conversion for VFC MP7 owners — M4 magazines are ubiquitous, inexpensive, and available in every capacity from 30-round low-caps to mid-caps and high-caps. If you want a sleeker, more compact look that fits the MP7's sub-machine gun aesthetic more closely, the \u003ca href=\"#mp7-mp5\" style=\"color: #cdd6f4;\"\u003eMP7 to MP5 adapter at £119.95\u003c\/a\u003e is worth considering. For the complete HPA picture, see our \u003ca href=\"\/pages\/hpa-airsoft-uk-the-complete-guide\" style=\"color: #cdd6f4;\"\u003eHPA Guide\u003c\/a\u003e or call us on 01494 911990.\u003c\/div\u003e","brand":"Airtac","offers":[{"title":"Default Title","offer_id":55538303533432,"sku":"26505706","price":129.95,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/8097\/3450\/files\/at-mp7-m4.webp?v=1776947015","url":"https:\/\/www.titanforgeairsoft.com\/products\/airtac-hpa-adapter-vfc-umarex-mp7-to-m4-magazine-modular","provider":"Titan Forge Airsoft","version":"1.0","type":"link"}