TTI | G18C / AAP01 Piston Head | Red

G18C / AAP01 Piston Head | TTI – replacement piston head for GBB pistols

This piston head is designed for GBB pistols including AAP-01 and G18C models. The component provides sealing between piston and cylinder during the firing cycle. Made from aluminum with red anodisation, it's built to handle higher pressures from Green Gas, propane, or HPA conversions.

Construction and materials

The TTI piston head features aluminum construction with a red anodised finish. Its lightweight design reduces moving mass in your blowback unit. The reinforced rubber seal has thicker construction than standard seals, providing better resistance to forces in HPA setups. The central mounting fits the piston rod of compatible GBB pistols.

Application and use

Replace your piston head when seeking improved consistency in HPA conversions or when your current rubber seal shows wear from intensive use. This upgrade component handles the higher pressures typical in Green Gas and propane setups. Installation requires disassembly of your blowback unit – experience with GBB internals is recommended.

Integration and compatibility

Compatible with WE and Action Army AAP-01 replicas, plus compatible G18C models. The piston head works in both standard gas setups and HPA conversions. Platform compatibility: AAP. Always verify fitment with your specific piston and cylinder combination before installation.