Well, the PTS PDR AEG is still in use. This fully licensed AEG from Magpul is a compact Polymer AEG that can be useful for close quarter games in airsoft. It is a bullpup, allowing for a compact look but with a longer barrel. Operation is ambidextrous, comes with rails and can take in the Magpul-style AEG magazines. Oxaba does a review of the AEG in this video.