Z-Parts MK16 DD GOV 14.5inch Aluminum Outer Barrel for Systema M4 PTW

Z-Parts MK16 DD GOV 14.5inch Aluminum Outer Barrel for Systema M4 PTW Aluminum Construction Come With Dummy Gas Block & Gas Tube 14mm CCW Thread Suitable For Systema M4 PTW Series Rifle Airsoft Guns