Originally Posted by
kantstudien
Every sentence in the above statement is entirely untrue. You need to do some serious research into CA gun laws before doing anything.
You can only have an AR pistol if the receiver was registered as a pistol in through the DOJ DROS process. The only way that is going to happen is if it was made into a single-shot pistol before it got to your dealer. After it has been registered as a single-shot pistol through your dealer (assuming he would undertake such a thing), then it can have a bullet-button installed so that it has a "fixed-magazine" and you can only use 10rd mags for it.
Yes, you can have the brace assuming the above has been done.
You do not need to pin a folding or collapsing stock on a fixed magazine rifle.
If you wanted a detachable magazine semiauto centerfire rifle, then you need to go featureless, meaning no flash hider, no collapsing/folding stock and no pistol grip. This is why people use the Monster Man grips.