Titanium coated metal teeth can extend the useful life of the piston by many times over a standard piston
Tested and approved by hard core players across who have reported that after 1000 shots in a highly upgraded AEG, the piston still looks like new! User tested and recommended with proven reliability using M190 spring at over 30,000 rounds! (Tests conducted with Deep Fire Titanium piston, Deep Fire reinforced gearbox, Systema super high torque gears, oiless metal bushings and other reinforced parts)
Disclaimer: All aftermarket upgrade parts require necessary skill or modification to install and assemble, please consult with your airsoft technician if needed.