Product Description The SilencerCo Thread Protector helps keep your barrel threads crisp and protected when a suppressor is not installed. Simply twist it onto compatible 1/2"-28 threaded barrels to help prevent dust and debris from clogging or damaging the threads during transport or storage. Constructed from steel with a black finish, it is a practical accessory for many US-made 9mm Luger barrels and AR-style platforms that use the common 1/2"-28 thread pattern. Product Highlights Protects exposed barrel threads when no suppressor or muzzle device is in use 1/2"-28 threads per inch pattern compatible with many US-made 9mm Luger barrels Steel construction for durable thread protection during transport and storage Simple twist-on installation-use care to avoid cross-threading Black finish for a clean, low-profile look on AR-style and other compatible hosts Specs Brand: SilencerCo Manufacturer Part Number: AC1360 UPC: 817272015553 Product Type: Thread Protector Caliber: 9mm Luger Thread Pattern: 1/2"-28 (threads per inch) Material: Steel Color/Finish: Black Firearm Type/Platform: AR Platform (compatible hosts with 1/2"-28 threads) Weight: 0.01 lb 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.