Spartan117gw reviews the DMR variant in the AEX Warfigher Series from Airsoft Extreme. The AEX Warfighter series is the offering of Airsoft Extreme to provide their own brand of AEGs. The DMR has a 20" Barrel and it requires a stock tube Lipo Battery to operate it. With an enhanced version 2 gearbox with 9mm bearing bushings, this AEG has an initialm muzzle velocity of 400-415fps on .20g BBs.