Tanio Koba - If you don't know the name, here's the information:
Tanio Kobayashi's story began 40 years ago, when Kobayashi became the first employee of the future model gun giant Model Gun Corporation (MGC)
Along the way, he, almost single handedly developed the first select fire gas pistol (MGC's M93R), the GBB as we know it and is responsible for the Tokyo Marui GBB mechanism.
The VP70 created a lot of excitement in the airsoft world becuase of it's unique design and functionality.
The VP70 Airsoft Gun.
Actually, there is not that much to see on the VP70. The real gun was the first Polymer framed pistol and features the internal hammer mechanism, so familiar on Glock pistols these days.
The frame is a smart, solid looking charcoal grey material, VP70M on the stock and the metal take down catches (within the trigger guard) and safety button (behind the trigger, but ahead of the grip - Push it left to right for safe, reverse to disengage) to disrupt the plain-ness.
He also started Tanio Koba, which produces the odd accessory (rifled barrels, kick boosters, etc) and the legendary Ruger 10/22.
Tanio is now in his late 60's and decided to revisit one of his early guns, the Heckler & Koch VP70 (H&K VP70M), which he felt he could improve upon.
The real steel VP70 has a notoriously heavy (some say 20lb!) trigger pull, but thankfully Tanio Koba chose to skip this and the distinctive U shaped trigger is pleasantly weighted, although the pull is quite long, with a Double Action only action.
The Stock
When fitting the stock to the VP70, it is essential that the selector switch is set to 1, for semi auto. Apparently, not doing so can damage the internal mechanism on the VP70 itself.
There is a lever/catch at the bottom which locks and unlocks the stock onto the gun. So far (after about 5 or 6 fitting and removals) there is no way the catch is needed, as the two are a very tight fit, but no doubt with further use, the catch will be useful to keep the connection tight.
The butt at the rear is unpadded, but is comfortable against the shoulder and hinges (on flexible white nylon tabs, rather than traditional hinges - I don't know if this bears any similarity to the original) to allow the gun to be stored inside. There is a cutout under the stock, to permit the grip of the VP70 to pass through. There is also a tapering slot cut in each side of the stock, which permits the 'harness plate' to be connected to it. This is supposed to help you attach the stock to a belt and, also, help with concealment by standing the stock slightly off from the body and keeping it perpendicular. Clearly, you would need a pretty baggy jacket to conceal the VP70 and stock.
The selector switch, for semi auto (1) or 3 round burst (3) is found at the top of the stock. This is very difficult to impossible to engage if the stock is not correctly attached to the gun, but switches with impressive precision once they are aligned.