Evike.com got in stock right now the King Arms Ultra Grade II Polymer M4 TWS Airsoft AEG with M-LOK Handguard. You cann choose between the Desert Tan and Black colours to fit your loadout... " The King Arms Ultra Grade II series of Airsoft AEGs brings all of the performance and features of King Arms Elite Series of AEGs to the masses at a price point that is accessible to every level of player.
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."