Product DescriptionThe HK threaded barrel (51000983) is a factory replacement/upgrade barrel for the HK45 platform, designed to help you configure an HK45 Tactical or upgrade a compatible HK45 to accept threaded suppressors and other muzzle devices. This .45 ACP barrel features a durable steel construction, a black finish, and a 5.20-inch length with M16x1 left-hand threading for secure muzzle attachment fitment.Product Highlights Factory HK threaded barrel upgrade for HK45 Tactical / HK45 fitment .45 ACP barrel with M16x1 left-hand thread pitch for suppressors and muzzle devices 5.20 inch barrel length for HK45 Tactical-style configuration Steel construction with black finish for durability and corrosion resistance Ideal as a spare barrel or as an upgrade to add muzzle-device compatibilitySpecs Brand: HK Manufacturer Part Number: 51000983 UPC: 642230269866 Type: Threaded handgun barrel Caliber: .45 ACP Fits: HK45 / HK45 Tactical Barrel Length: 5.20 in Thread Pitch: M16x1 LH Material: Steel Color/Finish: BlackDisclaimer: 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 product's manufacturer.