SA Polycarbonate Piston with 14 CNC Steel Teeth – Blue

Specna Arms polycarbonate piston with 14 CNC-machined steel teeth
The piston body is made from durable polycarbonate, while the stressed section consists of a complete steel rack with 14 teeth. CNC-machined steel teeth offer the highest mechanical durability and are suitable for long-term use in both standard and higher-performance builds. In standard configurations, for example with an M120-M130 spring, the CNC-machined rack provides a more durable solution than pistons with alloy teeth. An important design feature is the removed second piston tooth. This design provides more room for correct sector gear engagement and makes AOE (Angle of Engagement) adjustment easier, as common modifications do not require the second tooth to be additionally shortened or ground down as with some 15-tooth pistons. At the same time, in a correctly assembled gearbox, it can help reduce the risk of premature piston engagement at high RoF. The piston is designed primarily for V2 / V3 AEG platforms and others using a standard-length piston, such as V6 / V7 or M249, and is suitable not only for Specna Arms guns.
Key features of the Specna Arms piston with 14 CNC-machined steel teeth

14 CNC-machined steel teeth
The full-metal steel rack with 14 CNC-machined teeth increases the durability of the stressed section of the piston compared with designs featuring conventional alloy teeth.

Durable polycarbonate
The polycarbonate body combines low weight with mechanical durability suitable for use inside an AEG gearbox.

Removed second tooth
The design without the second tooth makes correct AOE adjustment easier and eliminates the need to additionally shorten it as with a conventional 15-tooth rack.

For repairs and upgrades
Suitable as a replacement for a worn piston as well as for gearbox upgrades where more durable steel teeth are required.

Original Specna Arms upgrade part
Part of the original Specna Arms upgrade parts range, designed primarily for servicing and upgrading airsoft AEGs.

Technical specif..