The bill seeks to strengthen New Jersey's assault weapons ban by revising the definitions and classifications of firearms under N.J.S.2C:39-1. It expands the definition of "assault firearm" to encompass a wider array of semi-automatic rifles, shotguns, and pistols that exhibit specific characteristics, such as the ability to accept detachable magazines or features like folding stocks and pistol grips. Notably, firearms equipped with bump stocks and those that can be easily assembled from parts are also included in this expanded definition. The bill further clarifies terms related to firearms, including "large capacity ammunition magazine," "trigger lock," and "armor piercing ammunition," aiming to enhance public safety and mitigate gun violence.

Additionally, the bill modifies the criteria for classifying firearms as assault weapons, allowing a firearm to be classified as such if it possesses just one military-style feature, rather than the previous requirement of two. New qualifying features include a thumbhole stock and a second handgrip, while existing features like a folding stock and flash suppressor are retained. The bill also codifies current state regulations regarding the classification of semi-automatic firearms as substantially identical to enumerated firearms, thereby improving clarity and enforcement of the assault weapons ban. The proposed changes are set to take effect immediately upon passage.