SPECIFICATIONS: WIRED: TO THE REAR BUSHINGS: 7MM SPRING GUIDE: PLASTIC BEARING FPS: 400+ GEAR RATIO: 18:1 PISTON: POLYMER - 1 METAL TOOTH PISTON HEAD / CYLINDER HEAD: POLYMER TAPPET PLATE / AIR NOZZLE: CLEAR POLYMER CYLINDER: PORTED MOTOR: STANDARD LONG TYPE PINION GEAR: D-TYPE