Used Heckler & Koch USC UMP-Style Conversion H&K 45 ACP 16"

Heckler & Koch USC 45ACP HK UMP-45 GERMAN

How Buying WorksEnding November 8, 2026 at 10:00 PM

Key Features

  • Item Type: Semi Auto Rifles
  • Action: Roller-Delayed Blowback
  • Manufacturer: Heckler & Koch (H&K, HK)
  • Capacity: 1 rd
  • Model: USC
  • Barrel Length: 16"
  • Caliber: .45 ACP
  • Finish: Black
  • Overall Condition: Excellent
  • Year Manufactured: 2010

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Product Description

    HK USC .45 ACP UMP-Style Conversion, 16-Inch, Made in Germany, Folding Stock, Pictogram Lower, Rails, BA Date Code (2010)

    This German-made HK USC in .45 ACP stands out with a UMP-style conversion that adds a folding skeleton stock, UMP-style lower with red pictogram selector, and an accessory-ready rail setup. Marked with HK's BA date code for 2010 and German proofs, it retains the USC's reliable semi-automatic, simple blowback, closed-bolt operation while adopting the iconic UMP-style configuration.

    Condition

    Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.

    Bore Condition: Excellent - Clean, mirror finish, no signs of wear.

    Bore Rifling: Excellent Rifling - Sharp lands and grooves.

    Specific Condition Notes: Magazine is not included.

    What’s Included
    • SD UMP .45 Auto 12-0317 marked suppressor (installed)

    Factory marked with German proof stamps and the DE country code, this USC was made by HK Sidearms GmbH in Germany and imported by Heckler & Koch Inc., Columbus, GA. The BA date code identifies 2010 production, providing clear provenance for buyers who value documented origin and period-correct markings.

    The UMP-style conversion equips this rifle with a folding skeleton stock on a left-side hinge and a UMP-style trigger housing/lower featuring the red pictogram selector. Length of pull is set at 15.0 inches, offering a solid shoulder fit consistent with the stock configuration.

    Controls and ergonomics mirror the UMP layout, including a left-side charging handle with a notch for locking. The rifle features an ambidextrous safety/selector and a polymer receiver and forend with longitudinal ventilation slots for durability and heat management.

    For mounting options, it includes a full-length top Picatinny rail along with right-side and bottom accessory rails on the forend. The 16-inch barrel is fitted with an SD UMP .45 Auto marked cylindrical muzzle shroud, complementing the UMP-style profile.

Specifications

Item TypeSemi Auto Rifles
ManufacturerHeckler & Koch (H&K, HK)
ModelUSC
SubmodelUMP-Style Conversion
Caliber.45 ACP
Overall ConditionExcellent
Bore ConditionExcellent
ActionRoller-Delayed Blowback
Capacity1 rd
Barrel Length16"
FinishBlack
Year Manufactured2010
Country of OriginGermany