Are there any design changes to the lower receiver between pre-AWB (clinton), during the AWB, and/or post AWB? ======= As I understand, California requires all AR-15's post-AWB, to require a tool to remove the magazine. The bullet tip of the cartridge is considered a tool. Correct? In California: Can pre-AWB AR-15s (button magazine release) currently be owned? Can pre-AWB AR-15s (button magazine release) currently be sold owner-to-owner? Or through FFL? Is there a capacity limit on pre-AWB or post-AWB?