Something for newbies as well as for those who do not have a clue on how airsoft gas blowbacks work, Explosive Enterprises prepared this video to help explain this airsoft tech in a clear and short way... "A brief overview of the operating mechanism used in virtually all modern gas blowback airsoft pistols and rifles."
Explosive Enterprise show how they created a HPA-powered GHK AUG Gas Blowback Rifle using an HPA-tapped Marui high capacity AUG AEG magazine... "Here's the process of splicing together a GHK AUG magazine, a spare GHK AUG mag shell, a Tokyo Marui hi-cap, and some basic fittings to produce a hi-cap magazine for the GBBR AUG.