ZERO-SHOCK Fps Airsoft Piston reinforced with lightweight carbon fiber technopolymer with all metal teeth (PM03CF)

FPS is proud to present the first lightweight ZERO-SHOCK piston with a carbon fiber reinforced technopolymer body, 100% Made in Italy and with all metal teeth. This patented system by FPS helps to reduce the stresses that the rack transmits to the piston body, making the entire assembly significantly more durable and reliable than a standard piston. For the piston material, a carbon fiber reinforced technopolymer with high mechanical performance and a low coefficient of friction has been chosen. The rack is assembled using MIM (Metal Injection Molding) technology, as this manufacturing process ensures dimensional accuracy and strength comparable to solid-state machining. The rack is presented with the second tooth missing and the third already reduced by 0.3 millimeters, as this configuration predisposes the piston itself to an appropriate angle of engagement (AOE) and makes it suitable for high speed. The type of injected metal is SAE 4650 with HRC38-42 ° hardening treatments, which is currently considered the best material on the market for this type of use. The sliding guides are designed to minimize friction and retain lubricant for a long period. The rack seat is decentralized to facilitate the coupling between the piston teeth and the sector teeth. Longitudinal reinforcements on the sides of the teeth increase the robustness of the piston and prevent contact of the rack with the internal wall of the cylinder. Appropriate ribs reduce the contact surface between the spring and the interior of the piston, and consequently also the body reduces friction between the metal and the polymer during contraction and elongation due to the cooking cycle. 100% MADE IN ITALY 100% MARUI COMPATIBLE