Product DescriptionThe HK Thread Protector Cap (MPN 970173) is a durable black steel thread cap designed to protect the muzzle threads on compatible .40 caliber HK threaded barrels when a suppressor or muzzle device is not installed. Its knurled exterior helps provide a secure grip for easy installation and removal while helping keep threads clean and protected during storage, carry, and range use.Product Highlights Protects muzzle threads on compatible .40 S&W threaded barrels when not in use Durable steel construction with black finish for long-lasting wear resistance Knurled exterior for improved grip during installation and removal Precision 14.5x1mm left-hand (LH) thread pattern for proper fit on compatible barrels Genuine HK part (970173) for reliable compatibility and performanceSpecs Brand: HK Manufacturer Part Number: 970173 UPC: 642230258228 Product Type: Thread cap / thread protector Caliber: .40 S&W Thread Pitch: 14.5x1mm LH (left-hand) 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.