Manufactured using a South African-made Vector Arms UZI as the base, the HR 4332 was among the final generation of fully transferrable American machine guns, manufactured shortly before the Firearm Owners Protection Act (aka House Resolution 4332) went into effect making it among the last fully transferrable machine guns manufactured in the United States. The receiver is devoid of the barrel ring and bolt block that would normally prevent installation of military configuration components, and the item is currently fitted with a smooth-sided bolt, ratcheting cocking handle, and a full auto trigger group with "A R S" markings. The left side of the receiver has both the Vector and Group Industries markings The grips are ribbed, and it has steel folding stock. The barrel has been fitted with a Coastal Gun 9mm suppressor. With standard barrel nut and manual. Magazine absent.

Excellent overall with 99% original black phosphate finish and some mild cycling marks on the top cover. Mechanically excellent NOTE: This weapon is a National Firearms Act (NFA), fully transferable Class 3, which is registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives, (BATFE) under the provisions of 18 U.S.C. Chapter 44 and 27 CFR part 478.

As described in "A".

Excellent with 99% original black finish and some light handling marks. NOTE: This Suppressor is a National Firearms Act (NFA), fully transferable Class 3, which is registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives, (BATFE) under the provisions of 18 U.S.C. Chapter 44 and 27 CFR part 478.