Crappy. You can buy "repair parts" in California and it is legal to posses the mags, just not to buy or sell them.If you buy a high cap mag body, and a high cap mag spring, then assemble them, you're still evil, according to the state of NJ. You can't do that either. Just a heads up. Most companies like Brownell's, that sell high cap mag bodies, won't ship even the disassembled body to Jersey, DC or NYC.