RetroArms CNC Piston 19 Steel Teeth — SR25 Gearsets Engineered for competitive players and

Engineered for competitive players and custom builders

and SR25-length gearbox shell

this trigger delivers faster shot timing and reduced weight — ideal for competitive and speedsoft setups using Electronic Trigger Units (ETUs) or MOSFET systems

making it ideal for AEG builds equipped with Electronic Trigger Units (ETUs) or MOSFET systems

19-tooth (T19) sector gear for long-stroke piston systems

RetroArms CNC Piston 19 Steel Teeth — SR25 Gearsets Engineered for competitive players andThe RetroArms CNC Piston 19 Steel Teeth (SR25 Gearbox) is a high durability, precision engineered piston made specifically for SR25 and extended length AEG gearboxes. Built for long stroke DMR systems, it features a full rack of 19 CNC machined steel teeth designed to handle higher stress, longer travel, and stronger springs commonly used in designated marksman builds. Its reinforced polymer body combined with a steel tooth rack ensures exceptional