The HR 4332 was part of the final generation of fully transferable American machine guns, manufactured shortly before the Firearm Owners Protection Act (aka House Resolution 4332) went into effect, making it among the last fully transferable 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 fitted with a SMG-profile barrel, a smooth-sided bolt numbered "790111/G", receiver cover with ratcheting cocking handle, ribbed forearm and grip panels, "A R S" selector group markings, green nylon sling, and an underfolding buttstock. Include with the lot is a black nylon soft case, four extra magazines, magazine loading tool, and sight adjustment tool.