Guarder Bore-Up Polycarbonate Piston Head with Bearing Combat Gas Block & Dummy Gas

Gas Block & Dummy Gas Tube  Length: 10"  Adaptive End: 14mm Negative

M16A1 Grip with Heat Sink End Set (Black) (GP256)  4

interchange four different sizes speed buffers to achieve your perference

removable front and rear sights

- Length: 790mm / 880mm (Extented)

Guarder Bore-Up Polycarbonate Piston Head with Bearing Combat Gas Block & Dummy GasBore Up Series upgrade part Polycarbonate Piston Head with Thrust Bearing is renewed to be more effective Custom 6 holes ventilation design increase the stability during full auto shooting mode It creates soft & quieter shooting sound than the sister part, Aluminum Version Reinforced piston head will provide extra duration during rapid & prolonged firing Recommended to use along with Upgrade Springs As always, upgrading AEG require necessary skill &