{"product_id":"sig-sauer-mcx-mpx-black-hpa-with-wolverine-inferno-2-spartan-edition","title":"Sig Sauer MCX MPX – Black – HPA with Wolverine Inferno 2 (Spartan Edition) (I)","description":"\u003cp\u003eThe \u003cstrong\u003eSig Sauer MCX MPX – Black – HPA (Spartan Edition)\u003c\/strong\u003e is a high-performance \u003cstrong\u003eHPA-powered rifle\u003c\/strong\u003e built for players who demand \u003cstrong\u003eelite consistency, instant trigger response and rock-solid reliability\u003c\/strong\u003e. Based on the MCX platform and fitted with the \u003cstrong\u003eWolverine Inferno 2 HPA engine\u003c\/strong\u003e, this build delivers smooth, tunable performance with minimal mechanical wear.\u003c\/p\u003e\n\u003cp\u003eFinished in non two-tone black and constructed from \u003cstrong\u003emetal and polymer\u003c\/strong\u003e, this Spartan Edition setup is designed for competitive skirmishing, high-tempo gameplay and players moving beyond traditional AEG limitations.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features (Quick View)\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHPA-powered rifle\u003c\/strong\u003e with Wolverine Inferno 2 engine\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpartan Edition performance-focused build\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSafe \/ Semi \/ Full-Auto\u003c\/strong\u003e fire modes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdjustable hop-up system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMCX platform ergonomics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMetal and polymer construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUltra-consistent FPS and air efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNon two-tone finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eConstruction \u0026amp; Reliability\u003c\/h2\u003e\n\u003cp\u003eThe MCX MPX platform combines a rigid \u003cstrong\u003emetal upper\u003c\/strong\u003e with reinforced polymer components to balance durability and handling. Internally, the \u003cstrong\u003eWolverine Inferno 2\u003c\/strong\u003e replaces conventional gearboxes with a sealed, electro-pneumatic HPA system, eliminating gears, pistons and springs that commonly fail under stress.\u003c\/p\u003e\n\u003cp\u003eThis results in a system that runs cleaner, cooler and more consistently over long skirmish days, even under high rates of fire.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003ePerformance \u0026amp; Field Use\u003c\/h2\u003e\n\u003cp\u003eHPA power delivers \u003cstrong\u003einstant trigger response\u003c\/strong\u003e, exceptional air efficiency and highly consistent shot-to-shot performance. The Inferno 2 engine allows fine tuning via air pressure and dwell settings, making it easy to meet site limits while maximising accuracy and range.\u003c\/p\u003e\n\u003cp\u003eFull-auto remains smooth and controlled, while semi-auto delivers crisp, repeatable shots—ideal for competitive play, speedsoft, or aggressive outdoor skirmishing where reliability is critical.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePlatform:\u003c\/strong\u003e MCX\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHPA air system required \u003cem\u003e(tank, line \u0026amp; regulator not included)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with MCX-style magazines \u003cem\u003e(platform dependent)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eIdeal For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eCompetitive and advanced airsoft players\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHPA users seeking maximum consistency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-tempo CQB and outdoor skirmishes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePlayers upgrading from AEG to HPA platforms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Sig Sauer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeapon Type:\u003c\/strong\u003e Rifle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Source:\u003c\/strong\u003e HPA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHPA Engine:\u003c\/strong\u003e Wolverine Inferno 2 (Spartan Edition)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFire Modes:\u003c\/strong\u003e Safe \/ Semi \/ Full Auto\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHop-Up:\u003c\/strong\u003e Adjustable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePlatform:\u003c\/strong\u003e MCX\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e Metal \/ Polymer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTwo-Tone:\u003c\/strong\u003e No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eRange Overview – HPA Performance Builds\u003c\/h2\u003e\n\u003cp\u003eHPA-powered airsoft platforms are built for players who prioritise \u003cstrong\u003econsistency, efficiency and control\u003c\/strong\u003e. By removing mechanical drivetrain limitations, HPA systems deliver predictable output, reduced maintenance and superior reliability across all conditions—making them the preferred choice for competitive and high-use environments.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eManufacturer\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eSig Sauer\u003c\/strong\u003e is globally recognised for producing precision-engineered firearms and platforms trusted by military, law enforcement and professional users worldwide. Their airsoft-licensed platforms reflect the same emphasis on ergonomics, realism and performance.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eWolverine Inferno 2\u003c\/strong\u003e, produced by \u003cstrong\u003eWolverine Airsoft\u003c\/strong\u003e, is regarded as one of the most reliable and tunable HPA engines available, offering exceptional consistency and durability for serious players.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eSafety Information\u003c\/h2\u003e\n\u003cp\u003eHPA-powered airsoft replicas operate using high-pressure air systems. Always ensure tanks, regulators and lines are correctly rated, maintained and connected before use. Wear certified eye protection at all times and comply with site rules and local laws regarding airsoft use, transport and storage. This replica is intended for airsoft skirmishing only.\u003c\/p\u003e","brand":"Sig Sauer","offers":[{"title":"Default Title","offer_id":56689573167452,"sku":null,"price":1049.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/0021\/7180\/files\/le1027-7.jpg?v=1770733515","url":"https:\/\/www.firstandonlyretail.co.uk\/products\/sig-sauer-mcx-mpx-black-hpa-with-wolverine-inferno-2-spartan-edition","provider":"First and Only Retail","version":"1.0","type":"link"}