Product DescriptionThe HK USP45 Compact Tactical Threaded Barrel is a factory replacement barrel designed for HK USP45 Compact pistols chambered in .45 ACP. Built from steel with a black finish, this 4.46-inch barrel adds a threaded muzzle to support compatible suppressors and other muzzle devices. It is commonly listed as a drop-in replacement and features an M16x1 left-hand thread pattern, along with an O-ring groove (O-ring not included) for improved muzzle device alignment and performance.Product Highlights Factory threaded barrel upgrade for HK USP45 Compact (.45 ACP) pistols 4.46" barrel length in durable black steel construction M16x1 left-hand threaded muzzle for suppressors and other muzzle devices O-ring groove at the muzzle (O-ring not included) to help enhance fit and consistency Commonly listed as a drop-in replacement; ideal for Tactical-style configurations Specs Brand Name: HK Manufacturer Part Number: 226347 UPC: 642230253803 Compatibility: HK USP45 Compact (USP Compact .45 ACP) pistols Caliber: .45 ACP Barrel Length: 4.46 in Material: Steel Finish/Color: Black Barrel Type: Threaded Thread Pitch: M16x1 LH (left-hand) Rifling: Polygonal (per distributor listings) Manufacturing Method: Cold hammer forged (per distributor listings) Country of Manufacture: Germany (per distributor listings) Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the products manufacturer.