The state of New Jersey does not require you to register your firearm. However, all New Jersey firearms dealers are required to maintain a register of every handgun that is transferred. The firearm dealer is required to record detailed transaction information into the registry. The firearm dealer retains the register and is required to make this register available for inspection by any law enforcement officer at all reasonable hours. It is also required that copies of the register be delivered to the county clerk or local law enforcement and the New Jersey State Police within five days of the sale of the firearm. If you have questions about owning a firearm in the state of New Jersey, consult with an experienced weapons lawyer.