{"product_id":"mec-r-type-piston-head-marui-15-tm-g19","title":"R-Type Marui-15 High-Intake Brass Piston Head (for TM G17 Gen.4 \/ G19 \/ PX4 \/ FN 5-7)","description":"\u003cp\u003eWhile Tokyo Marui's newer large-bore GBB pistols (such as the G17 Gen.4 and G19) provide a harder kick, they are also more susceptible to pressure loss when the large cylinder chills down under rapid fire. The MEC R-Type Marui-15 is specifically dimensioned to seal these modern, high-volume nozzles. Machined from premium brass at 2.0g, this unit adds structural stability and uses an advanced 6-hole air port configuration to deliver faster compression and snappy reset.\u003c\/p\u003e\n\u003ch5\u003eKey Features \u0026amp; Benefits\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eOptimised for Large Nozzles: Solid brass construction handles the heightened impact of TM's large-diameter blowback housing without edge warping.\u003c\/li\u003e\n\u003cli\u003eHigh-Volume 6-Port Inlets: Speeds up air redirection into the seal groove, forcing the O-ring to seat tightly against the internal nozzle walls instantly.\u003c\/li\u003e\n\u003cli\u003ePrecision Fitment Kit: Includes three targeted O-ring profiles (red, black, green) to ensure an airtight match with either OEM or aftermarket upgrade nozzles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eTechnical Highlights\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eWeight: 2.0g\u003c\/li\u003e\n\u003cli\u003eMaterials: CNC-Cut Brass, Industrial Rubber\u003c\/li\u003e\n\u003cli\u003eCompatibility: TM G17 Gen.4, G19, PX4, FN 5-7\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eApplications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCQB \u0026amp; Rapid Target Engagement: Maintains full slide travel and reliable lock-back on empty, even under cold conditions.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MEC","offers":[{"title":"Default Title","offer_id":41455219769534,"sku":"ME103490300","price":70.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/0368\/2494\/products\/original_04526ae6-2834-4e60-b0c6-609b37fe77e5.jpg?v=1756090121","url":"https:\/\/pts-steelshop.com\/products\/mec-r-type-piston-head-marui-15-tm-g19","provider":"PTS Steel Shop","version":"1.0","type":"link"}