California law prohibits the sale of Gen4 pistols.
You can see the full details on our WARRANTY page.
Unfortunately, at this time, Bulk Store Deals does not give factory tours to the public.
Yes, the assembly notch is for assembly only. The recoil spring assembly drops down into the frame recess and stays there until it is disassembled, when the slide and barrel come forward, picking it up out of the lower position.