Rather ironic that a source that supports draconian gun laws ends up the ones who break them. So here is a breakdown of each California law Mr. Schatz violated:
1:18-Pistol grip illegal in California, there's a piece of metal you have to attach to the grip and the stick to unable grip the pistol grip
1:18-No fixed magazine. Notice that weird piece under the trigger guard? That's supposed to be under the magazine release, not all the way under the trigger
2:33-Possessing and firing an "assault weapon" in California
2:59-Incorrect demilling of a weapon by not cutting it into 3 pieces and leaving a certain amount of metal cut out
From the article (I put the scraps back in the cardboard box the kit came in and leave it for the garbage truck)-Transferring a firearm with out an FFL license
Now, as much as I get a kick from these anti-gunners breaking their own laws, this isn't the direction I'm going. What I'm going is that Mr. Schatz committing at the minimum of FIVE felonies because these gun laws are fucking ridiculous. We don't want to flog up prisons with pot users but we have no problem putting somebody behind bars for 6 years because they wanted a fucking pistol grip
And here's another correction. So long as you personally build a weapon, you don't need to have a serial number on it. Only when you decide to sell it you must do it
http://www.motherjones.com/politics/2013/05/ak-47-semi-automatic-rifle-building-party