Midwest Industries Ar15 Flash Hider/impact Device Black . Constructed of tool steel with melonite finish. For 5.56mm/.223 Remington rifles with 1/2-28 threads. Includes new crush washer. Specifications for Midwest Industries AR-15 Flash Hider Impact Device: Manufacturer: Midwest Industries Color: Black Fabric/Material: 4140 Steel Gun Model: AR-15 Country of Origin: USA Package Contents: Midwest Industries AR-15 Flash HiderImpact Device The Midwest Industries AR-15 Flash HiderImpact Device is a quality addition to the Midwest Industries lineup. For more great deals on Flash Hiders by Midwest Industries please browse our Midwest Industries Gun Parts page. What firearm models does the manufacturer say Midwest Industries AR-15 Flash Hider Impact Device is compatible with? The manufacturer suggests that Midwest Industries AR-15 Flash Hider Impact Device is compatible with AR-15Midwest Industries MI-ARFH1: AR-15 Flash Hider Impact Device 5.56mm/.223 Remington With 1/2-28 Threads