Designed for serious AEG upgrades and maintenance: the PM02 uses a POM C self-lubricating body and a metal tooth rack produced by Metal Injection Molding (SAE 4650) for exceptional strength and dimensional precision. The rack is configured with the second tooth removed and the third lowered by 0.3 mm to favor correct angle of engagement (AOE), making it suitable for high-speed setups. Slide guides, longitudinal reinforcements and an offset rack seat ensure smooth operation and robust performance.

Technical specifications

Model: FPS PM02 — Full Metal Rack piston, 14 teeth.

Body material: POM C (high-performance self-lubricating polymer).

Rack material/process: metal teeth via MIM; SAE 4650 alloy.

Rack configuration: second tooth missing, third tooth lowered 0.3 mm (pre-AOE).

Sliding guides: engineered to minimize friction and retain lubricant.

Longitudinal reinforcements: increase tooth strength and prevent contact with cylinder wall.

Rack seat: offset for optimal meshing with sector gear.

Compatibility: 100% Marui compatible.

Origin: 100% Made in Italy.

Package contents

1 × FPS Full Metal Rack piston 14T (PM02).

What you gain with this piston
A durable, low-friction replacement that enhances gear engagement reliability, reduces wear and supports high-speed cycles — perfect for tuners and workshops demanding repeatable performance.

Warnings & usage information (GPSR compliant)

Do not tamper with, modify or adapt the piston: alterations may impair function, safety and compliance.

Ensure the replica is unloaded and springs are not under tension before beginning installation; follow correct gearbox disassembly procedures.

Use appropriate tools and torque settings; avoid deforming the piston body, rack or cylinder.

Confirm dimensional compatibility with your gearbox and sector gear; incorrect fitment can cause malfunctions or damage.

Avoid prolonged exposure to aggressive chemicals or excessive humidity; store in a dry place.

For complex internal repairs rely on qualified technicians or authorized service centers.

Dispose of packaging and metal components according to local regulations.