NJ A4890

Defines "machine gun conversion device" as any device made of plastic, metal, or combination of parts designed to modify a semiautomatic firearm to fire multiple shots with a single trigger pull

Classifies any firearm with a machine gun conversion device attached as a machine gun, making possession a second-degree crime punishable by 5-10 years imprisonment and up to $150,000 fine

Establishes third-degree crime for possessing a machine gun conversion device (even without a firearm), punishable by 3-5 years imprisonment and up to $15,000 fine

Creates third-degree crime for manufacturing, transporting, shipping, selling, or disposing of machine gun conversion devices

Requires sentences for conversion device possession to run consecutively with any sentence for possessing an assault firearm or machine gun, with the law taking effect six months after enactment