You can go a couple different routes...
You can either buy the socom stock by itself, and it will come threaded, so it can be used in conjunction with an AR stock adapter for the VZ... It can also be ordered with a pig nose cap on the end, which allows for modular mounting, interchangeable with any of Ace's other stocks. This would have to be used in conjunction with a Stormwerkz Ace stock adapter.
So, if you're set on running the SOCOM, get the AR adapter and run the stock right off of it. If you want options down the road, you might get the Ace adapter from Storwerkz, and run the stock off of it with a pig nose end.
I just went through this shopping myself, so here's a hint... Although Stormwerkz sells the Ace adapter, it is really only for the Ace AK/FX stock. Ace will tell you that all of their stocks use the same modular mounting, so you may figure that you can use any of them with the Stormwerkz adapter... but in truth, the AK/FX has a flat mounting surface, and the rest of Ace's line of stocks use the pig nose with the same bolt holes as the AK/FX, but the pig nose has a center alignment "rib" that doesn't allow it to mount, without grinding it off the pig nose. If you do grind it off, nothing will be visible, as its hidden.
Confused yet?
