Group Industries HR4332S UZI-Pattern 9mm Semi-Auto Carbine, 18 in Barrel, Gray Parkerized, 1980s US-Made, Multi-Caliber Convertible with .45 ACP Parts
This Group Industries HR4332S is a U.S.-made, UZI-pattern semi-automatic carbine from the 1980s with an 18-inch 9mm barrel, stamped steel receiver, and gray Parkerized finish. The receiver is marked 'HR4332 S 9mm/45 ACP/22' with the Louisville, KY address, and this example includes .45 ACP conversion components. It features a ratcheting UZI top cover, closed-bolt blowback operation, and a top-folding steel stock with ribbed polymer furniture, backed by a substantial magazine set and useful accessories.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in great shape, with minor scratches and blemishes present.
What’s Included
- 13x 32-round UZI-pattern steel magazines
- 2x 25-round UZI-pattern steel magazine
- .45 ACP conversion bolt (marked '45 ACP')
- .45 ACP barrel, 16 in (marked '45 ACP')
- Display barrel, 3.5 in, plugged
- UZI ventilated barrel shroud
- UZI top cover (ratcheting pattern)
- UZI magazine loader
- Canvas slings
- Canvas UZI magazine pouches
- UZI detachable wooden buttstock (not installed)
- Manual
- Tool
Built by Group Industries in Louisville, Kentucky, the HR4332S is an UZI-pattern semi-automatic carbine configured for 9mm and marked for multi-caliber use. It follows IMI Model A architecture while incorporating the Model B firing-pin safety, and it uses a semi F/S selector. The action is closed-bolt blowback with a ratcheting UZI top cover and charging system.
This carbine has an 18-inch 9mm barrel and a top-folding steel stock, with ribbed polymer forend and grip panels. The receiver is stamped steel with a gray Parkerized finish, presenting the durable look and feel associated with UZI-pattern builds. Length of pull is 15.5 inches.
Multi-caliber capability is supported by the receiver marking 'HR4332 S 9mm/45 ACP/22' and the included .45 ACP conversion bolt and 16-inch .45 ACP barrel. A 3.5-inch plugged display barrel and a ventilated UZI barrel shroud are also included, providing additional configuration options for display and setup.
Capacity is stated at 32+1, and this package includes a substantial magazine set: thirteen 32-round magazines and two 25-round magazines (15 total). Support gear such as the UZI magazine loader, canvas pouches, and canvas slings add practical utility for range or storage.
As a 1980s, U.S.-made example with clear receiver markings and the desirable ratcheting top cover, this HR4332S stands out for its configuration, finish, and the breadth of included parts and accessories—especially the .45 ACP conversion components and extra stock.