{"product_id":"hpa-adapter-mk23-series-to-m4","title":"HPA Adapter MK23 Series to M4","description":"\u003cp\u003eA modular HPA adapter that converts compatible MK23 Series gas magazines to use an external HPA system with Airsoft M4 AEG magazines.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with TM MK23, SSX23, SSX303 and clone MK23 platforms.\u003c\/li\u003e\n\u003cli\u003eCompatible with a wide range of Airsoft M4 AEG magazines.\u003c\/li\u003e\n\u003cli\u003eFully printed gas magazine construction.\u003c\/li\u003e\n\u003cli\u003eMaintains high internal air volume.\u003c\/li\u003e\n\u003cli\u003eReduced weight compared to previous adapter designs.\u003c\/li\u003e\n\u003cli\u003ePlug and play design with valve, feed lips and gas router pre-installed.\u003c\/li\u003e\n\u003cli\u003eNo donor parts or assembly required.\u003c\/li\u003e\n\u003cli\u003eIntegrated grub screw adjustment allows optimisation of the nozzle-to-gas router seal.\u003c\/li\u003e\n\u003cli\u003eSupplied with M4 magazine fitment shims.\u003c\/li\u003e\n\u003cli\u003eCompatible with interchangeable AIRTAC modular magwells including M4, Angled M4, MP5, Shotgun Shell and Compact Drum configurations.\u003c\/li\u003e\n\u003cli\u003eUS Foster HPA quick disconnect fitting supplied as standard.\u003c\/li\u003e\n\u003cli\u003eRecommended operating pressure: 90-150 PSI.\u003c\/li\u003e\n\u003cli\u003eMaximum operating pressure: 150 PSI.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe AIRTAC MK23 Series to M4 HPA Adapter is a modular conversion system designed to allow compatible MK23 Series gas magazines to operate from an external High Pressure Air system while feeding from Airsoft M4 AEG magazines. Compatible with TM MK23, SSX23, SSX303 and clone platforms, it provides increased ammunition capacity while retaining the compact handling characteristics of the MK23 platform.\u003cbr\u003e\u003cbr\u003eThe adapter features a fully printed gas magazine which maintains a high internal air volume while significantly reducing weight compared to previous designs. This revised construction also improves modularity and simplifies assembly. The M4 magwell can be exchanged for other compatible AIRTAC modular magwells, allowing users to switch between different magazine formats without replacing the complete adapter.\u003cbr\u003e\u003cbr\u003eSupplied fully assembled, the adapter includes the valve, feed lips and gas router already installed, eliminating the need for donor magazine components. Two integrated grub screws allow adjustment of the adapter position to optimise the seal between the nozzle and gas router, while the supplied magazine shims help achieve a secure fit with compatible Airsoft M4 AEG magazines.\u003cbr\u003e\u003cbr\u003eThe adapter is supplied with a standard US Foster HPA fitting and is designed for use with regulated HPA systems operating between 90 and 150 PSI, with a maximum operating pressure of 150 PSI.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eRange Overview:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAirTac’s HPA Adapters range converts traditional gas-powered replicas to use high-pressure air magazine systems with seamless reliability. Designed for multiple replica platforms, each adapter features precision-moulded construction, a secure BB-retention system, and standardised US-thread fittings for broad compatibility. The range combines rugged strength with practical installation, giving players smoother reloads and extended playtime through improved air efficiency and modular flexibility.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInjection-moulded polymer housings provide durability and consistent alignment\u003c\/li\u003e\n\u003cli\u003eStandard US-thread fittings ensure cross-system HPA compatibility\u003c\/li\u003e\n\u003cli\u003eIntegrated BB-retention systems prevent feed loss during reloads\u003c\/li\u003e\n\u003cli\u003eSupplied with magwell inserts, screws and shim sets for precise fitment\u003c\/li\u003e\n\u003cli\u003eAvailable for multiple pistol and SMG platforms for modular loadouts\u003c\/li\u003e\n\u003cli\u003eEngineered for reliability, consistency and long-term performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eBrand Statement:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAirTac specialise in developing high-performance HPA conversion systems for airsoft enthusiasts seeking consistent, efficient, and adaptable performance. Their focus on precision engineering and robust construction ensures every product delivers dependable field use, intuitive function, and lasting value.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSafety Information:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eDo not exceed 150 PSI when operating any airsoft HPA adapter Always use air regulated by a secondary regulator Check PSI output before connecting air to the adapter Do not connect directly to unregulated air sources, CO2 systems, or high-pressure tanks Do not use with incompatible high-pressure air lines or fittings Always ensure correct setup and operation before use\u003c\/p\u003e","brand":"Airtac","offers":[{"title":"Default Title","offer_id":56945036591490,"sku":"AT-MK23-M4","price":89.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/8224\/7217\/files\/HPAAdapterMK23SeriestoM4airsoft.jpg?v=1790273220","url":"https:\/\/killerinstinctairsoft.co.uk\/products\/hpa-adapter-mk23-series-to-m4","provider":"Killer Instinct Tactical","version":"1.0","type":"link"}