Engineered in Italy, the FPS Softair TPPE piston head is precision CNC-machined from lightweight ERGAL (7075 aluminum alloy) with an anodized finish for minimal friction. Featuring a 6-port pressure deviation ventilation system, it forces air under the primary O-ring during forward movement to maximize cylinder compression and air seal consistency. Equipped with dual high-grade O-rings and integrated ball bearings to reduce rotational spring and piston tension during rapid cycling. Ideal for high-performance AEG builds requiring maximal air seal reliability.