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What does II. quality mean?
Products in the second quality category are 100% functional, but they may have a minor defect that does not affect the functionality of the product itself. Each product is inspected and only then released for sale.
All defects are individually mentioned for each product.
The products of the second quality category also come with a 2-year warranty.
A purpose-built tune-up kit for AEG M4 platforms to improve sealing, smoothness, and overall shot-to-shot consistency. Ideal as a reliability upgrade or to replace worn parts causing air loss.
What’s inside & why it helps:
POM piston head – lightweight and durable for reliable sealing and smooth cycling.
Silent cylinder head – reduces impact noise and wear.
Ported cylinder – efficient air management for the system.
21.4 mm nozzle – M4-appropriate length to aid feeding and seal.
Compatibility: designed for AEG M4. Verify fit with your hop-up unit and (typically) V2 gearbox before installation. Install & care: clean fitment, light lubrication of O-rings, and free movement checks. If unsure, have a technician handle the install.
Package contents:
1× POM piston head
1× Silent cylinder head
1× Ported cylinder
1× 21.4 mm nozzle