Heckler & Koch HK USC .45 ACP Semi-Auto Rifle with UMP-Style Conversion, 16" Barrel, 30+1
This Heckler & Koch HK USC is a .45 ACP semi-auto rifle in a USC-to-UMP-style conversion configuration that emphasizes UMP-style ergonomics and magazine compatibility. It is marked "Made in Germany" and retains clear HK receiver and barrel markings, along with noted import and proof marks. The setup includes a side-folding skeletonized stock, separate pistol grip, extended fore-end with rail sections, and a long Picatinny top rail.
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. There are some minor and superficial scratches and blemishes present. The bore is clean and shiny.
What’s Included
- HK-branded padded soft rifle case with exterior MOLLE webbing
- Original case
- Original manual
- 2x 30-round HK .45 Auto UMP-style magazines (one marked "Made in Germany")
This USC is configured in a UMP-style conversion layout with a UMP-style side-folding skeletonized stock and rear hinge block, plus a separate pistol grip in place of the original USC thumbhole stock. The result is a compact, UMP-inspired handling setup while remaining clearly marked as an "HK USC" receiver.
The extended fore-end/handguard provides additional gripping area and includes Picatinny rail sections on the sides and bottom. A long Picatinny top rail runs along the receiver, providing a continuous mounting surface while the rifle retains mechanical/iron sights with a post-type front sight and an aperture/diopter-type rear sight.
Chambered in .45 ACP and using a blowback action, this rifle is configured to use UMP-pattern magazines and is listed with a 30+1 capacity. Included are two 30-round UMP-style magazines, with one magazine marked "Made in Germany."
Markings noted include "Heckler & Koch GmbH / Made in Germany," receiver marking "HK USC," and barrel marking ".45 ACP" and "DE," along with "Heckler & Koch Inc. / Columbus, GA, CIP N, CC" import/proof information. The serial number 47-022756 appears on the ejection-port plate and barrel.