Element Aluminum AEG Airsoft Piston Head W/ Ball Bearings

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Airsoft Aluminum ball bearing piston head made by Element.

The Element airsoft Aluminum Piston Head is very light weight and increases durability and air-seal, and the ball bearings reduce spring friction. Heat resistant O-Ring and Its 8 holes ventilation design increases the stability while shooting on full auto. A great part for upgrading your airsoft AEG.