FPS CNC ERGAL Double O-Ring Ball Bearing AEG Piston Head – Advanced Type (TPAVN) Blowback Units 1 × T238 LiPo Battery

1 × T238 LiPo Battery 11

and custom builds

Balanced for both standard and tuned builds

and a clear round-count window for quick ammo checks

80%: 300–350mm

FPS CNC ERGAL Double O-Ring Ball Bearing AEG Piston Head – Advanced Type (TPAVN) Blowback Units 1 × T238 LiPo BatteryThe FPS TPAVN Piston Head is designed for advanced AEG builds requiring enhanced air seal and smooth performance. Made from lightweight yet durable ERGAL aluminum, this piston head features a double O ring system and an integrated ball bearing, ensuring reliable compression and optimal spring rotationeven under high ROF or heavy spring loads. Features: CNC machined from ERGAL 7075 aluminum for superior strength and reduced weight Double O ring design