It has been ages since we have heard the "JLS" brand again. An ACM airsoft company that releases airsoft guns that are not M4s or AKs, having released the first SCAR-L and XM8 AEGs in the market, gets a mention again. This time, Team Blacksheep does an upgrade of the JLS RX4 AEG, which was released in 2008, and give us a review of this AEG... "One of the team members picked up an old JLS RX4 and we wanted to upgrade it and see what we could do with it.