{"product_id":"mec-r-type-piston-head-kwa-15-kwa-mp9","title":"R-Type KWA-15 High-Intake Brass Piston Head (For KWA HK45 \/ MK23 \/ MP9 \/ Mark 4 \/ VZ61)","description":"\u003cp\u003eRunning heavy-bolt platforms like the KWA MP9 SMG or large-bore sidearms like the HK45 and MK23 means your compression components are subjected to intense structural stress and heavy gas volume with every trigger pull. Standard plastic piston heads can twist or fracture under these conditions, ruining your air seal. The MEC R-Type KWA-15 delivers an uncompromising solution with its robust 3.0g CNC-machined brass architecture. Its high-flow 6-port intake locks gas instantly into the piston seal, converting high pressure into crisp, satisfying blowback.\u003c\/p\u003e\n\u003ch5\u003eKey Features \u0026amp; Benefits\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy-Duty 3.0g Brass Foundation: Specifically engineered to absorb the violent kinetic impact of large gas submachine guns and heavy pistols without shifting or warping.\u003c\/li\u003e\n\u003cli\u003e6-Hole High-Flow Fluid Paths: Maximizes the speed at which incoming gas pressure forces the sealing ring against the nozzle walls, mitigating excess gas bleed.\u003c\/li\u003e\n\u003cli\u003eCustom Micro-Fit O-Rings: Packed with red, black, and green rubber rings to give tech operators the exact sizing options required to tune out friction anomalies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eTechnical Highlights\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eWeight: 3.0g\u003c\/li\u003e\n\u003cli\u003eMaterials: CNC-Milled Brass, High-Durability Rubber\u003c\/li\u003e\n\u003cli\u003eCompatibility: KWA HK45, MK23, MP9, Mark 4, VZ61\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eApplications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eTactical Training \u0026amp; Severe Cold Environments: Minimizes the rapid FPS drops typical of high-volume gas systems during continuous clearing drills.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MEC","offers":[{"title":"Default Title","offer_id":40934275645630,"sku":"ME105490300","price":70.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/0368\/2494\/products\/original_329bab93-c954-4364-bd40-8b8918d95b4d.jpg?v=1756090110","url":"https:\/\/pts-steelshop.com\/products\/mec-r-type-piston-head-kwa-15-kwa-mp9","provider":"PTS Steel Shop","version":"1.0","type":"link"}