Piston Heads

The RetroArms nozzle O-ring provides the seal between the nozzle and the cylinder. Replacing a worn seal helps maintain compression and consistent FPS.

The kit contains the piston and the piston head for the gearbox of AEG airsoft replicas. A practical solution for replacing both worn parts.

Features

• Color: white

Package Contents

• Piston
• Piston head

The Ares Amoeba kit contains a reinforced nylon fiber piston with all-metal teeth and the matching piston head. A durable upgrade for the gearbox of AEG replicas.

Features

• Reinforced nylon fiber piston
• Full metal teeth

Package Contents

• Piston
• Piston head

The Element O-ring seal is designed for the piston head of AEG replicas. Replacing a worn O-ring restores sealing and compression in the cylinder.

The aluminum piston head is a replacement part for the gearbox of AEG airsoft replicas. It provides air compression in the cylinder and transfers energy to the BB.

Features

• Aluminum construction
• Color: red

The Specna Arms piston head is part of the range of original spare parts, identical to those used in the series production of Specna Arms replicas. It is made of durable polymer and is designed for M4/M16 replicas, ideal for the Core series.

Original parts are useful both for Specna Arms replica owners and for service technicians.

Features

• Durable polymer construction
• Original Specna Arms part
• For M4/M16 replicas, ideal for the Core series

The Specna Arms piston head is CNC machined from aluminum and has a ball bearing for free spring rotation and reduced wear.

Features

• CNC machined aluminum construction
• Ball bearing

The RetroArms piston head is CNC machined from aluminum, for precise sealing and durability in the gearbox of AEG replicas.

Features

• CNC machined aluminum construction

The RetroArms piston head is CNC machined from POM, a lightweight and durable material. It is suited to builds that emphasize low weight and quiet operation.

Features

• Material: POM
• CNC machining

The 2.5 mm thick RetroArms aluminum AOE plate mounts on the piston head to correct the angle of engagement (AOE) between the piston and the sector gear. It reduces wear on the first tooth of the piston.

Features

• Aluminum construction

Specifications

• Thickness: 2.5 mm

The Point aluminum silent piston head reduces the noise produced on impact with the cylinder head while maintaining good compression.

Features

• Aluminum construction
• Silent design

The Modify aluminum piston head has a thrust bearing and delivers high performance with a 100% airtight seal. A popular upgrade for the gearbox of AEG replicas.

Features

• Aluminum construction
• Thrust bearing
• 100% airtight seal

The Modify polycarbonate piston head is a lightweight replacement part for the gearbox of AEG replicas, ensuring proper compression in the cylinder.

Features

• Polycarbonate construction

The Gate EON High Speed piston head is designed for the most demanding DSG and speed builds. The 10 holes significantly increase airflow and improve sealing, while the ultra-light CNC-machined POM material ensures shot consistency, a perfect seal with the cylinder, a high rate of fire and eliminates FPS drops.

Revision 2 brings more rounded air holes, which reduce wear on the cylinder head cushion, and a reinforced mounting thread.

Features

• Designed for DSG and speed builds
• 10 holes for improved airflow and sealing
• Ultra-light CNC-machined POM material
• Perfect seal with the cylinder
• AOE spacer included
• No replica modification required
• Intended for advanced users

Specifications

• Piston head weight: 2.7 g (without bearing)
• Recommended for springs up to M140
• O-ring: 19 x 2.4 mm

Compatibility

• All standard AEG cylinders
• All standard AEG cylinder heads
• All standard AEG pistons

The Gate EON Power Hybrid piston head is designed for standard and high-performance builds. The 10 holes increase airflow and improve sealing, while CNC machining from aircraft-grade aluminum ensures shot consistency, perfect sealing and high power. Together with the adjustable AOE, it is an essential part of any build.

The special weight plates included allow the use of heavier BBs in DMR builds. Revision 3 has more rounded air holes, which reduce wear on the cylinder head cushion.

Features

• Designed for standard and high-performance builds
• 10 holes for improved airflow and sealing
• CNC-machined aircraft-grade aluminum
• Perfect seal with the cylinder
• AOE spacer included
• Weight plates for heavier BBs in DMR builds
• No spring power limit
• No replica modification required
• Intended for advanced users

Specifications

• Piston head weight: 4.7 g (without bearing and weight plates)
• O-ring: 19 x 2.4 mm

Compatibility

• All standard AEG cylinders
• All standard AEG cylinder heads
• All standard AEG pistons

Package Contents

• Power Hybrid piston head
• AOE spacer
• Weight plates

The G&G reinforced piston head is designed for version II and III gearboxes and offers increased durability in setups with stronger springs.

Features

• Reinforced construction
• For version II and III gearboxes

The G&G set contains the polymer piston and piston head, designed for G&G version 2 gearboxes. It is the original replacement part for these replicas.

Features

• Polymer construction
• For G&G version 2 gearboxes

Package Contents

• Piston
• Piston head

The Element aluminum piston head is a replacement part for the gearbox of AEG replicas, providing proper compression and good durability.

Features

• Aluminum construction

Package Contents

• 1 piston head

The E&L set contains a lightweight polymer piston with 14 teeth, 3 of which are metal, and a silent piston head. It is designed for V3 gearboxes.

Features

• Lightweight 14-tooth piston (3 metal teeth)
• Silent piston head
• Polymer construction
• For V3 gearboxes

Specifications

• Weight: 18 g

Package Contents

• Piston
• Piston head

The Big Dragon aluminum piston head has a double O-ring for improved sealing in the cylinder and consistent compression.

Features

• Aluminum construction
• Double O-ring for better sealing

The RetroArms thrust bearing mounts in the piston head and allows the spring to rotate freely during compression, reducing wear and torsion.

Features

• Ball thrust bearing

Specifications

• Outer diameter: 15 mm
• Inner diameter: 6.9 mm
• Thickness: 1.5 mm