Heckler & Koch HK USC .45 ACP Semi-Auto Carbine, German-Made, 16 in Barrel, Gray Polymer, 10+1
The HK USC is a German-made, .45 ACP semi-automatic carbine built on a lightweight polymer platform. It uses a closed-bolt, simple blowback system and feeds from single-stack proprietary magazines. This example features a 16 in barrel, a fixed skeletonized thumbhole stock, and ambidextrous safety, with modular receiver mounting bosses for accessory rails. It ships with two factory magazines and an HK-branded soft carbine case.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Polygonal rifling with clean, well-defined geometry.
Specific Condition Notes: The exterior shows minor scratches and blemishes consistent with light handling. The carbine is in great shape overall.
What's Included
- HK-branded soft carbine case
- Two factory HK USC 10-round polymer magazines
Chambered in .45 ACP, the USC is the civilian counterpart to HK’s UMP family and retains the platform’s closed-bolt, simple blowback operation. Capacity is 10+1 with its single-stack, proprietary magazine system.
The 16 in barrel features an unthreaded muzzle and polygonal rifling with a six-groove, right-hand twist. The bore condition is excellent, supporting the carbine’s clean overall presentation.
Construction centers on a gray polymer receiver and frame with a fixed, skeletonized thumbhole stock and an integral rear sling loop. The integral fore-end includes a sling loop/handstop, and the length of pull measures 14.0 in. Overall length is approximately 35.43 in, and weight is about 6.0 lb.
Controls include an ambidextrous safety selector and a left-side charging handle. No mechanical sights or top rail are installed, but the receiver has modular mounting bosses for accessory rails. The carbine bears German proof marks (CIP N, DE country code, antler symbol) and manufacturer/import markings: Heckler & Koch GmbH – Made in Germany; Heckler & Koch Inc., Columbus, GA. The serial number is present on both the receiver plate and the barrel.