Find out why Anvil Airsoft TV (AATV) calls this the works airsoft tech job ever, having a look at an HPA-powered DMR... "This week we look inside an HPA DMR that has been gifted to the channel and find the worst tech Job I've ever seen in Airsoft. It was originally a VFC/Umarex HK G28 AEG DMR that was 'converted' to HPA with a  Mancraft PDik 2.0."