King Arms M4 TWS Ultra Grade Version II
OptimusPrime
23 Jan 2017
King Arms posts an update on their King Arms M4 TWS Ultra Grade II Series... "Ver.II 7mm bearing Gearbox is using on KA M4 Training Weapon System (TWS) Ultra Grade II. The quick spring change system Ver.2 gearbox helps to replace the spring and adjust the shooting power easily and Mosfet assembly provides better trigger contact."
KA M4 TWS Type 1 - BK Ultra Grade II
KA M4 TWS Type 2 - BK Ultra Grade II
KA M4 TWS Type 3 - BK Ultra Grade II
