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The type of metal injected is SAE 4650 + HRC38-42 hardening treatment 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 the lubricant for a long period of time.The rack seat is decentralized to favor the..

FPS is proud to present the first ZERO-SHOCK piston with 100% Made in Italy technopolymer body and full metal teeth.This system patented by Fps allows to attenuate the stresses that rack transmits to piston body and it makes the assembly enormously more resistant and reliable than a normal piston.Fo..