Product DescriptionThe Luth-AR 5.5" Flash Hider is a durable steel muzzle device designed to help reduce visible muzzle flash while also adding length to shorter AR-style barrels. Built from 4150 steel and finished in a phosphate coating for corrosion resistance, it features a 1/2x28 thread pitch and is intended for use with both .223 Remington and 5.56x45mm NATO.Product Highlights 5.5-inch flash hider adds length to short barrels while providing flash suppression 4150 steel construction for strength and long service life Manganese phosphate finish helps resist wear and corrosion 1/2x28 thread pitch fits common AR-15 .223/5.56 barrels Compatible with .223 Remington and 5.56x45mm NATO platformsSpecs Brand: Luth-AR Product Type: Flash hider / flash suppressor Length: 5.5 in Material: 4150 steel Finish: Manganese phosphate Thread Pitch: 1/2x28 (right-hand) Caliber Compatibility: .223 Remington / 5.56x45mm NATO Manufacturer Part Number: BL-55 UPC: 812058031680Disclaimer: 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.