Product DescriptionInspired by the classic XM-177 Moderator, the KAK Industry Retro Extended Flash Hider is designed to extend a 12.5-inch barrel to a legal non-NFA length when permanently pinned and welded. Built with durability in mind, it features heat treatment, a phosphate coating for corrosion resistance, and milled flats to simplify installation. Its extended profile and flash-hiding port design make it a strong choice for retro-style AR builds and practical muzzle flash reduction.Product Highlights XM-177-inspired retro extended flash hider designed for pin-and-weld barrel length compliance on 12.5-inch barrels 1/2x28 thread pitch for compatibility with common AR-style threaded barrels Five flash-hiding ports help reduce visible muzzle flash Heat treated and phosphate coated for strength and corrosion resistance Pre-drilled 0.125-inch hole and milled flats to support easier pin/weld and installationSpecs Product Type: Extended flash hider Thread Pitch: 1/2x28 Overall Length: 4.15 in Ports: 5 Finish: Phosphate Heat Treated: Yes Milled Flats: Yes Pin/Weld Hole: 0.125 in pre-drilled Crush Washer Included: No UPC: 811163035897 Manufacturer Part Number: AR15-XM177-FH-001 Brand: KAK IndustryDisclaimer: 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.