G&G Armament announce that the SR series now come in Battleship Grey and also feature the ETU and MOSFET... "Battle Tested. Combat Proven. The new SR-Series in Battleship Grey features a Generation 2 electronic trigger unit (E.T.U.) with a pressure absorber. The pressure absorber takes the excess force of the trigger pull to give a quicker and faster response. Additionally, a new Generation 3 Mosfet has been updated for superior performance. Now available."