Question: are glock carbine kits legal in california?
Answer: The kit by itself is legal. Installing it on your Glock 19, would be illegal (CA felony for making an assault weapon). Unless, you modify your Glock 19 frame to make it CA legal. In order to make a Glock/Mechtech CCU carbine legal in CA, you will have to install a magazine lock and only use a 10 round magazine.