H&K USP45 Tactical 5.09 in Threaded Barrel .45 ACP

This is a replacement threaded barrel for the H&K USP45 Tactical, intended to upgrade or replace the factory barrel to accept threaded muzzle attachments. It is a drop-in part for full-size USP .45 pistols and is not compatible with USP45 Expert, compact USP models, or the newer HK45 pistol. The barrel is offered with a left-hand thread pattern to match common NATO NFA specifications.

Key Specifications

• The barrel length is 5.09 inches.
• The barrel is chambered for .45 ACP.
• The NFA thread pattern is 16x1mm LH.
• Designed to fit HK USP Tactical full-size pistols (not Expert or compact models).
• The barrel type is Threaded.
• Construction is described as cold hammer-forged polygonal.
• The finish is listed as black steel.
• Country of origin is DE.
• The listed weight is 0.25.
• Additional feature: Will Not Fit Newer HK45 Pistol.

This threaded USP45 Tactical barrel provides a straightforward way to add compatibility with threaded muzzle devices and other attachments while maintaining the original pistol’s ergonomics and handling. Its drop-in design and factory-compatible dimensions make it suitable for owners who want to expand the pistol’s accessory options without altering the host firearm’s core features.