Vector Arms HR4332 Mini UZI 9mm Transferable Registered-Receiver Machine Gun, Pre-Ban, 7.5 in Barrel, Side-Folding Stock
This Vector Arms HR4332 is a transferable, registered-receiver Mini UZI-pattern machine gun built on a Group Industries stamped receiver. Notable for its compact 7.5 in barrel, side-folding metal stock, and classic UZI control layout, it is a pre-1986 example with strong collector interest. The receiver is roll-marked for multiple calibers, and the build retains hallmark Mini UZI features with a durable parkerized/phosphate finish.
Configured with a quick-detach barrel system and a top-mounted knurled charging handle, this compact 9mm platform combines proven UZI ergonomics with a rare, transferable registered-receiver status. Markings and configuration details align with Vector’s HR4332 pattern, and the submachine gun includes a mix of UZI-pattern steel magazines and an IMI UZI manual.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Poor - Noticeable dirt, stains, significant corrosion or damage.
Bore Rifling: Poor Rifling - Rifling heavily worn or filled with fouling or debris.
Specific Condition Notes: This firearm is in solid shape. There are scratches and blemishes present. Carbon buildup is present on the muzzle. There is a bulge or ring in the barrel, and the barrel will need to be replaced.
What’s Included
- 1x 32-round UZI-pattern steel magazine
- 3x 25-round UZI-pattern steel magazines
- IMI UZI 9mm semi-automatic carbine instruction manual
The HR4332 is a registered-receiver build by Vector Arms on a Group Industries receiver, making it transferable and pre-1986 under the Hughes Amendment. This configuration follows the Mini UZI pattern with a compact 7.5 in barrel and a side-folding skeleton metal stock for a reduced footprint.
The stamped sheet-steel receiver features three longitudinal reinforcement ribs per side and a parkerized/phosphate finish. Receiver markings include VECTOR ARMS. NSL, UT, HR4332 9mm/45 ACP/22, GROUP IND LOU KY 40214, with multi-caliber roll-marking that reflects the receiver’s designation.
Controls and operation are classic UZI: select-fire, blowback-operated action; A-R-S selector pattern; grip safety; detachable polymer grip-stick lower; and a top-mounted knurled charging handle. The ribbed polymer fore-end provides a secure hold.
The quick-detach barrel uses a knurled barrel nut, and the iron sights include a protected front post and a rear aperture with protective ears. The stated capacity is 32+1 with UZI-pattern magazines.
Overall, this Mini UZI-format HR4332 pairs collectible, pre-ban status with hallmark UZI features in a compact package, built in the USA by Vector Arms on Group Industries receiver components.