The proposed bill in New Jersey aims to enhance firearm regulations by prohibiting the possession and sale of machine gun conversion devices, which are defined as devices that modify semiautomatic firearms to enable them to fire multiple shots with a single trigger pull. The bill introduces a new definition for "machine gun conversion device" and modifies the existing definition of "machine gun" to include firearms equipped with such devices or trigger cranks. Violations of these provisions will result in criminal penalties, with possession of a machine gun conversion device classified as a third-degree crime, while possession of a machine gun remains a second-degree crime.

In addition to addressing machine gun conversion devices, the bill establishes penalties for the possession of certain types of ammunition, such as hollow nose or dum-dum bullets and armor-piercing ammunition, categorizing these offenses as fourth-degree crimes unless the individual is a licensed collector. The legislation also criminalizes the manufacturing, transporting, and selling of machine gun conversion devices, with penalties running consecutively for related firearm offenses. Exceptions are made for law enforcement and military personnel under specific circumstances, and the bill emphasizes the importance of maintaining records for the sale and transfer of firearms and ammunition to ensure compliance with the law. Overall, the bill reflects a commitment to public safety by tightening regulations surrounding firearms and ammunition.