Vipertech promises Inokatsu quality at a more affordable price as they actually were involved in Inokatsu airsoft gun production before. Will their MKX2 GBB which is based on the Colt XM177E2 be of the same quality or better? Here is Bruce of BB2K Airsoft to give his scrutiny to this GBB... "The Viper Tech MKX2 is a 1:1 replica of the legendary COLT XM177E2, which is the compact version of the Colt M16A1 used during the Vietnam War.