The new KWA Ronin M-Series of AEGs is now available at Airsoft Megastore and here is a video on what they think about this series... "A.J. takes a look at the PDW 6 and the SBR 10 from KWA's newest line of AEG's the Ronin Series! These two both have modular upper receivers, run on KWA's version 2.5 gearbox, and have a plethora of amazing features."