Check out how Aztech Innovations make their reinforced hybrid polymer piston body in house here on the Gold Coast. Injection moulded with 50 tonnes of pressure then cured for maximum strength and resilience to breaking. These AEG Gelball and airsoft pistons have been thrashed to within an inch of their life and we believe they would be rated as the world tuffest AEG piston body as we have not had one fail yet. These are available through Azraels as just the body and hardened metal 14 tooth rack or the piston can be bought in combination with the Aztech Xtreme flow CNC piston head
https://www.azraelsarmoury.com/collections/aztech-innovations/products/aztech-custom-nylon-polymer-piston
