FPS TUNE-UP KIT MADE OF ERGAL FOR M4 / M16

Description

The FPS Tune‑Up Kit for M4/M16 (KITM4P2) is a complete, high‑performance internal upgrade set designed to boost air seal, consistency and overall reliability in any Version 2 AEG platform. Fully made in Italy and engineered with premium materials, this kit delivers a noticeable improvement in shot‑to‑shot stability and long‑term durability.

Inside the kit you’ll find three precision components:

• DELRIN Air Nozzle (SPM4P) — lightweight, self‑lubricating and machined for a perfect seal on M4/M16 platforms.
• FPS Cylinder Head V2 (TC02A) — reinforced construction with optimal cushioning for smoother piston impact and improved compression.
• CNC ERGAL Double O‑Ring Ball Bearing Piston Head (TPGE) — high‑grade 7075 aluminium, dual O‑rings for maximum air seal, and a ball‑bearing core to reduce spring stress and enhance cycling efficiency.

This combination significantly improves AEG performance, especially when paired with quality springs and a well‑tuned gearbox.

100% Marui‑compatible and 100% made in Italy, this kit is ideal for players who want reliable, measurable upgrades without unnecessary complexity.