FPS Piston Head AOE Shims

Description

The FPS AOE Shim Set (SAOE1) is a lightweight, Italian‑made solution for achieving perfect Angle of Engagement on any AEG piston head. Designed for techs who want precise control over piston travel and impact timing, these shims allow you to fine‑tune AOE without adding unnecessary weight or compromising reliability.

Each pack includes three 1 mm technopolymer shims, engineered to sit securely between the piston head and piston body. Correct AOE dramatically reduces stress on the first teeth of both the piston and sector gear, improving gearbox longevity and overall performance — especially in upgraded builds.

Made with FPS’ signature precision and consistency, these shims are a simple but essential upgrade for any serious AEG tuning project.

Specifications:

• Inner hole: 5 mm
• Outer diameter: 18 mm
• Thickness: 1 mm (each)
• Quantity: 3 shims per pack
• Material: Lightweight technopolymer
• Origin: 100% Made in Italy