
Lonex AEG M4-A1,M4-RIS,SR-16,M733 Enhanced Gearbox Cylinder & POM Vent Piston Head Set
FEATURES: - GROOVED STEEL CYLINDERS FOR HEAT DISSIPATION - STEEL BALLBEARING PISTON HEAD FOR SMOOTHER ROTATION OF SPRING DURING COMPRESSION - VENTILATION HOLES IN PISTON HEAD GREATLY INCREASES SPEED THAT THE PISTON TRAVELS FOR FASTER CYCLING - SIZE-MATCHED PISTON HEAD - CNC PROCESSED POLYCARBONATE AIR NOZZLE (W/ O-RING) FOR BETTER AIR SEAL