Heckler & Koch HK USC .45 ACP Semi-Auto Carbine with 16-inch Barrel, Fixed Thumbhole Stock, and Iron Sights
This Heckler & Koch USC is a German-made .45 ACP semi-auto carbine built around a polymer receiver and a blowback action. It is marked "HK USC" and features a long, cylindrical 16-inch barrel with an unthreaded muzzle/crown, a fixed skeletonized thumbhole stock, and iron sights with front and rear sight assemblies. Included markings and stamps list CIP proof marks, German origin, and U.S. import information.
Condition
Overall Condition: As-new condition with no signs of prior handling beyond what’s typical from inspection (see photos).
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minimal markings from previous handling/use. The bore is bright and clean. Refer to pictures.
What’s Included
- HK-branded soft rifle case/bag (Heckler & Koch logo/text visible)
- Owner's Manual
- 1x 10-round detachable box magazine marked "USC .45 ACP / Made in Germany" with HK logo
The USC is chambered in .45 ACP and is marked accordingly on both the receiver and barrel. This example is listed with a 10+1 capacity and includes a single 10-round magazine with factory USC markings.
Controls and handling features include an ambidextrous safety/selector lever and a left-side charging handle. The rifle is configured with iron sights, using dedicated front and rear sight assemblies.
Build details include a polymer receiver and polymer frame in black, paired with a matte black finish. The fixed thumbhole stock is skeletonized and features an open web behind the grip, with a listed length of pull of 14.5.
Markings on the firearm include CIP N, CC, DE, "Heckler & Koch GmbH / Made in Germany," and "Heckler & Koch Inc. / Columbus, GA." The serial number observed is 47-023378 and is also marked on the barrel and stock.



