Whilst waiting for the release of the newly unveile Tokyo Marui MK18 Mod1 NEG, you might want to know that are already some existing in the airsoft market, albeit without the recoil and blowback. Here is Red Ivan Airsoft showing us the G&P CQBR Sopmod II MK18 Mod 1... "In this video we'll talk about G&P CQBR Sopmod block II (MK18 Mod 1). We will discuss packaging, internals and externals of this AEG and, of course, we will talk about its history."