{"title":"Pistons \u0026 Piston Heads","description":null,"products":[{"product_id":"shs-racoon-15teeth-light-weight-piston","title":"SHS 14 teeth light weight piston","description":"A piston made of durable and lightweight plastic. Equipped with 14 steel teeth which greatly increases its durability making it apt for being used by power tune-ups.","brand":"Outdoor Zone Ireland","offers":[{"title":"Default Title","offer_id":58711433052491,"sku":"PU0327","price":9.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1066\/3362\/5931\/files\/PU0327.jpg?v=1791198424"},{"product_id":"fps-air-brake-cnc-pom-double-o-ring-ball-bearing-aeg-piston-head-with-adjustable-aoe","title":"FPS AIR BRAKE CNC POM DOUBLE O-RING BALL BEARING AEG PISTON HEAD WITH ADJUSTABLE AOE","description":"\u003cstrong\u003eThe FPS TPAA Air Brake Piston Head is a lightweight, high‑efficiency upgrade engineered to boost air seal, reduce gearbox noise and improve long‑term reliability in any Marui‑spec AEG. Made from CNC‑machined POM for precision and durability, this piston head is designed for players who want smoother cycling and tighter FPS consistency.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eThe \u003cstrong\u003efront ventilation ports\u003c\/strong\u003e expand the O‑ring during each shot, ensuring that all air inside the cylinder is pushed forward to propel the BB — maximising efficiency and stabilising FPS. The \u003cstrong\u003edouble O‑ring setup\u003c\/strong\u003e further enhances sealing performance, especially in upgraded builds.\u003cbr\u003e\u003cbr\u003eThe integrated \u003cstrong\u003eball‑bearing system\u003c\/strong\u003e reduces spring tension during compression and release, helping maintain spring health and improving gearbox smoothness. When paired with a ball‑bearing spring guide, it forms an optimal low‑stress setup.\u003cbr\u003e\u003cbr\u003eA key feature of the TPAA is its \u003cstrong\u003eadjustable AOE system\u003c\/strong\u003e, allowing you to fine‑tune piston length by \u003cstrong\u003e1, 2, 3 or 4 mm\u003c\/strong\u003e, or run it without shims. Perfect AOE dramatically improves gearbox reliability and reduces impact stress.\u003cbr\u003e\u003cbr\u003eAs an air‑brake piston head, the TPAA also \u003cstrong\u003ereduces gearbox noise\u003c\/strong\u003e by creating an air cushion at the end of the piston stroke — ideal for players who want a quieter, smoother‑running build.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 10.89 g\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC POM\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e Double O‑ring, ball bearings, adjustable AOE (1–4 mm), air‑brake design\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e 100% Marui‑spec AEGs\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e 100% Made in Italy","brand":"FPS Softair Italy","offers":[{"title":"Default Title","offer_id":58711535092043,"sku":"TPAA","price":13.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1066\/3362\/5931\/files\/FPS_airbrake_pistonhead_TPAA_1.jpg?v=1791199301"},{"product_id":"fps-cnc-ergal-double-o-ring-ball-bearing-aeg-piston-head-pressure-deviation","title":"FPS CNC ERGAL DOUBLE O-RING BALL BEARING AEG PISTON HEAD PRESSURE DEVIATION","description":"\u003cstrong\u003eFPS CNC ERGAL DOUBLE O-RING BALL BEARING AEG PISTON HEAD PRESSURE DEVIATION\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eFPS CNC ERGAL Double O-Ring Ball Bearing AEG Piston Head Pressure Deviation (XPAE).\u003cbr\u003eXPAE new version with X-RING and one-piece plastic shim for AOE.\u003cbr\u003eThe FPS ERGAL piston head is a great upgrade that will increase the efficiency of airflow through the cylinder.\u003cbr\u003eThis piston head has ports on the front to push out the o-ring as it moves forwards, this ensures that all of the air in the cylinder is being pushed out to propel the BB.\u003cbr\u003eThe ball bearings help reduce tension created by the spring compressing and expanding, this combined with a ball bearing spring guide is the optimal set up to keep your spring in good shape.\u003cbr\u003eEach FPS piston head is made of ergal and it is also anodized for a smooth surface finish.\u003cbr\u003eThis is the most advanced version with 6 ventilation holes.\u003cbr\u003eDesigned to divert the pressure in the inner part of the oring increasing dilation, double o-ring, and ball-bearing.\u003cbr\u003eThe piston head is constructed out of CNC ERGAL for durability and precision.\u003cbr\u003eThis product is designed and manufactured entirely in Italy, by technicians who have years of experience in the repair and modification of Airsoft replicas.\u003cbr\u003e\u003cbr\u003e100% MARUI COMPATIBLE\u003cbr\u003e100% MADE IN ITALY","brand":"FPS Softair Italy","offers":[{"title":"Default Title","offer_id":58711537451339,"sku":"TPAE","price":13.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1066\/3362\/5931\/files\/FPS-CNC-ERGAL-DOUBLE-O-RING-BALL-BEARING-AEG-PISTON-HEAD-PRESSURE-DEVIATION.jpg?v=1791199319"},{"product_id":"fps-lightened-airsoft-piston-full-metal-teeth","title":"FPS LIGHTENED AIRSOFT PISTON FULL METAL TEETH","description":"\u003cstrong\u003eThe FPS PM01 is a lightened, high‑performance AEG piston engineered for players who want durability, speed and long‑term reliability inside their gearbox. 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When paired with a ball‑bearing spring guide, it forms an optimal low‑stress setup for long‑term reliability.\u003cbr\u003e\u003cbr\u003eMachined from \u003cstrong\u003eCNC ERGAL (7075 aluminium)\u003c\/strong\u003e and anodized for a smooth, low‑friction finish, the TPAVN is built for durability, precision and high‑speed performance. \u003cstrong\u003e100% Made in Italy — 100% Marui compatible.\u003c\/strong\u003e\n\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 11.2 g\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC ERGAL (7075 aluminium)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e Double O‑ring, ball bearings, 8‑port advanced design\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Marui‑spec AEGs\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in Italy","brand":"FPS Softair Italy","offers":[{"title":"Default Title","offer_id":58711609213259,"sku":"TPAVN","price":11.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1066\/3362\/5931\/files\/FPS-PISTON-HEAD-BEARING-IN-ERGAL-WITH-DOUBLE-OR-LIGHTENED-FOR-HIGH-SPEED.png?v=1791200001"},{"product_id":"fps-piston-head-in-technopolymer-loaded-with-carbon-fiber-designed-for-fast-bursts-and-to-improve-the-silence-of-the-replica","title":"FPS PISTON HEAD IN TECHNOPOLYMER LOADED WITH CARBON FIBER, DESIGNED FOR FAST BURSTS AND TO IMPROVE THE SILENCE OF THE REPLICA","description":"\u003ch3\u003eFPS PISTON HEAD IN TECHNOPOLYMER LOADED WITH CARBON FIBER, DESIGNED FOR FAST BURSTS AND TO IMPROVE THE SILENCE OF THE REPLICA\u003c\/h3\u003e\u003cbr\u003eThe piston head is a technopolymer loaded with carbon fiber, is designed for fast bursts and to increase the silence; of the replica thanks to the very small playing surface (XPAVPCF).\u003cbr\u003e\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e100% COMPATIBLE MARUI\u003cbr\u003e100% MADE IN ITALY","brand":"FPS Softair Italy","offers":[{"title":"Default Title","offer_id":58711609409867,"sku":"XPAVPCF","price":12.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1066\/3362\/5931\/files\/FPS-PISTON-HEAD-IN-TECHNOPOLYMER-LOADED-WITH-CARBON-FIBER-DESIGNED-FOR-FAST-BURSTS-AND-TO-IMPROVE-THE-SILENCE-OF-THE-REPLICA.png?v=1791200001"},{"product_id":"v2-v3-half-teeth-14-steel-teeth-aeg-piston-made-from-cnc-aluminum-shs","title":"V2 \/ V3 Half teeth 14 steel teeth AEG piston made from CNC aluminum [SHS]","description":"\u003ch3\u003e⚙️ V2 \/ V3 Half Teeth 14 Steel Teeth AEG Piston\u003c\/h3\u003e\u003cbr\u003eLightweight strength for reliable gearbox performance.\u003cbr\u003e\u003cbr\u003eThis CNC-machined aluminum piston is designed for Version 2 and Version 3 gearboxes, offering a balance of durability and reduced weight. 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