{"product_id":"spark-hiei-kai-6-05mm-tight-bore-high-precision-inner-barrel-for-next-gen-mp5-evolt-225mm-by-airsoft97","title":"SPARK Hiei Kai 6.05mm Tight Bore High-Precision Inner Barrel for Next-Gen MP5\/EVOLT (225mm) by AIRSOFT97","description":"\u003cdiv class=\"n6owBd awi2gc\"\u003eThe \u003cstrong class=\"rQesXe MPyX\"\u003eSPARK Hiei Kai 6.05mm Tight Bore Inner Barrel (225mm)\u003c\/strong\u003e delivers a premium mechanical upgrade engineered specifically for the short-carbine layout of next-generation electronic platforms. Developed through an exclusive manufacturing partnership between \u003cstrong class=\"rQesXe MPyX\"\u003eAIRSOFT97\u003c\/strong\u003e and the master metalcraft technicians at \u003cstrong class=\"rQesXe MPyX\"\u003eda Vinci\u003c\/strong\u003e in Japan, this high-end barrel is meticulously shaped from domestic cold-forged stainless steel to maximize muzzle velocity and grouping precision.\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003eThis ultra-precise tight-bore component serves two crucial engineering purposes:\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003col class=\"IaGLZe VimKh\"\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eCompression Optimization:\u003c\/strong\u003e The strict 6.05mm inner diameter creates a concentrated, high-efficiency pneumatic seal behind the BB, increasing overall muzzle velocity (FPS) on shorter setups without altering the main spring tension.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eMuzzle Gas Control:\u003c\/strong\u003e Incorporates a custom \u003cstrong class=\"rQesXe MPyX\"\u003e20mm super-long internal taper at the muzzle tip\u003c\/strong\u003e, smoothing air pressure expansion as the projectile exits to prevent accuracy-destroying muzzle turbulence.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cdiv class=\"yhAwj\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"otQkpb\" role=\"heading\"\u003eTechnical Specifications:\u003c\/h2\u003e\n\u003cul class=\"KsbFXc U6u95\"\u003e\n\u003cli class=\"Z1qcYe\"\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eMaterial:\u003c\/strong\u003e Highest grade domestic cold-forged SUS304 stainless steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eBore Diameter:\u003c\/strong\u003e 6.05mm Tight Bore (Strict tolerance control via Japanese CNC milling)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eBarrel Length:\u003c\/strong\u003e 225mm (Optimized short-carbine length)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eMuzzle Design:\u003c\/strong\u003e 20mm Super-Long Air-Dissipation Taper\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003ePackage Contents:\u003c\/strong\u003e 1x SPARK Hiei Kai 6.05mm Tight Bore Inner Barrel (225mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eCompatibility:\u003c\/strong\u003e Tokyo Marui Next-Generation Recoil Shock (NGRS) MP5 series, AIRSOFT97 EVOLT systems, and standard AEGs requiring a 225mm barrel profile\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eOrigin:\u003c\/strong\u003e 100% Made in Japan\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003e\u003cem class=\"eujQNb\"\u003eTech \u0026amp; Safety Warning: Due to the high-precision 6.05mm tight-bore architecture, low-tier, out-of-round, or seamless-recycled BBs will cause immediate inner-barrel jamming and severe gear train\/piston damage. Always pair this high-end barrel with premium, high-density precision BBs\u003c\/em\u003e\u003c\/div\u003e","brand":"SPARK (Airsoft97)","offers":[{"title":"Default Title","offer_id":47772785246357,"sku":"SPK-HIEI-605-225-NGRS","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0700\/9704\/3605\/files\/spark-hiei-kai-6-05mm-tight-bore-inner-barrel-next-gen-mp5-evolt-225mm.webp?v=1787611172","url":"https:\/\/www.northmarkvault.com\/products\/spark-hiei-kai-6-05mm-tight-bore-high-precision-inner-barrel-for-next-gen-mp5-evolt-225mm-by-airsoft97","provider":"Northmark Vault","version":"1.0","type":"link"}