Product Description The Ultradyne USA Apollo S is a rugged compensator muzzle brake designed to help reduce felt recoil and control muzzle rise on 6.5mm rifles. Built with precise manufacturing and durable construction, it&';s made to deliver long-term reliability and consistent performance. Featuring a nitride finish and including a timing nut for straightforward installation and proper indexing, the Apollo S is a strong upgrade for rifles using 5/8x24 muzzle threads (commonly found on AR-10/AR-platform and other 6.5 Creedmoor builds). Product Highlights Apollo S compensator muzzle brake helps manage recoil and minimize front-end rise 5/8x24 thread pattern fits many 6.5 Creedmoor and .264/6.5mm threaded barrels Durable stainless-steel construction with a nitride finish for wear and corrosion resistance Includes timing nut for easier alignment/installation Precision manufacturing for dependable long-term performance Specs Brand: Ultradyne USA Manufacturer Part Number: UD10250 UPC: 851019008644 Type: Compensator / Muzzle Brake Caliber: 6.5mm (commonly listed for 6.5 Creedmoor) Thread Pattern: 5/8x24 Material: 416 stainless steel (often specified as 416R stainless steel) Finish/Color: Nitride, Black Overall Length: 2.94 in Outside Diameter: 0.975 in Weight: 5.4 oz Included: Timing nut Country of Manufacture: USA 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 product&';s manufacturer.