This bill seeks to enhance New Jersey's assault weapons ban by revising the definition of "assault firearm." It broadens the classification criteria to include semi-automatic rifles, shotguns, and pistols that possess at least one military-style feature, such as a folding stock or a pistol grip. The bill also codifies existing regulations that define a semi-automatic firearm as substantially identical to a listed firearm if it meets specific criteria, thereby expanding the range of firearms classified as assault weapons. Key insertions include detailed specifications for firearms with detachable magazines and features like a flash suppressor or grenade launcher, which will tighten restrictions on assault weapons in the state.

Additionally, the bill reduces the number of criteria that must be met for a firearm to be classified as an assault weapon from two to one, making it easier for certain firearms to fall under this classification. New criteria introduced include the inclusion of a thumbhole stock and a second handgrip or protruding grip that can be held by the non-trigger hand. These changes aim to capture a broader range of firearms under the assault weapon classification, thereby reinforcing regulations on these types of weapons. The bill is set to take effect immediately upon passage.