Our products

RetroArms CNC Piston with Steel Rack – 19 Teeth

Name: RetroArms CNC Piston with Steel Rack – 19 Teeth
Brand: RetroArms
SKU: 7228
Price: 390 CZK
Availability: InStock

Kč390.00

VAT included

RetroArms CNC Piston with Steel Rack – 19 Teeth (SR-25 / PSG-1) is a durable upgrade for high-performance AEG builds where the piston and its teeth are exposed to high mechanical loads. It combines a low-friction POM body with a precisely CNC-machined steel rack with 19 teeth. The result is a design focused on reliability and long service life under demanding use.

Quantity

Last items in stock

Zásady zabezpečení

(upravuje se pomocí modulu Ujištění zákazníka)

Zásady doručení

(upravuje se pomocí modulu Ujištění zákazníka)

Zásady vrácení

(upravuje se pomocí modulu Ujištění zákazníka)

Description
Product Details

RetroArms CNC piston with 19-tooth steel rack for high-performance AEG builds

The RetroArms CNC piston is designed for AEG builds using a piston with 19 teeth, where gear-tooth durability under higher mechanical loads is important. The piston body is made from POM, a material suitable for sliding and mechanically stressed components that helps maintain low friction as the piston moves inside the gearbox. The high-stress section consists of a steel rack precisely machined using CNC technology. The combination of a lightweight polymer body and durable steel teeth makes the piston particularly suitable for higher-performance upgrade builds. Before installation, it is essential to verify that the specific gearbox and gears use a design compatible with a 19-tooth piston, as found in the SR-25, PSG-1 or L85; the tooth count itself is not universal across all AEG platforms.

Key features

19-tooth steel rack

The high-stress gearing consists of a 19-tooth steel rack designed for compatible SR-25, L85 and PSG-1 AEG gearbox configurations.

Precision CNC machining

The steel rack is manufactured using CNC machining, allowing precise machining of its geometry and individual teeth.

POM piston body

The POM body provides low friction and suitable mechanical properties for the repeated movement of the piston inside the gearbox.

For mechanically demanding builds

The combination of a polymer body and durable steel teeth is suitable for high-performance AEG builds where the piston is subjected to higher mechanical loads.

Combination of low friction and durability

The design takes advantage of POM in the piston body and steel in the high-stress rack, allowing each material to perform its specific role within the assembly.

Technical specifications

Type: CNC piston with steel rack
Body material: POM
Rack material: Steel
Rack manufacturing: CNC machining
Number of teeth: 19 (SR-25, L85 and PSG-1)
Weapon type: AEG

Package contents

1× RetroArms CNC piston with steel rack – 19 teeth

Frequently asked questions (FAQ)

Which AEG builds is this piston suitable for?

The piston is designed for SR-25, L85 and PSG-1 platforms using a 19-tooth piston design. It is particularly suitable for higher-performance configurations where durable steel teeth are required. Compatibility with the specific gearbox and gear set must be verified before purchase.

Why does the piston have a POM body and a steel rack?

POM provides suitable sliding properties and low friction for piston movement, while the steel rack provides durability at the point where the piston teeth engage the sector gear.

Is a 19-tooth piston universal for all AEG gearboxes?

No. The number of teeth must correspond to the design of the specific gearbox (SR-25, L85 and PSG-1) and the gear set being used. This piston therefore cannot automatically be used as a replacement for a standard piston with a different number of teeth.

Is the piston suitable for higher-performance upgrade builds?

Yes. The combination of a POM body and CNC-machined steel rack is particularly suitable for AEG builds subjected to higher mechanical loads. Overall reliability, however, always depends on correct assembly and proper matching of the other gearbox components.