The KAK XM177 Flash Hider 5.56 NATO is a clone correct muzzle device designed for enthusiasts of retro firearms. Its integrated grenade ring provides the authentic look while eliminating the need for extra parts. The design, inspired by the XM-177 Moderator, allows this extended flash hider to extend a 12.5" barrel to a legal non-NFA length when pin and welded. With a heat-treated and phosphate-coated finish, this muzzle device is built for durability and performance. Intended Use: Ideal for retro firearm builds and tactical setups. Key Benefits: Enhances the aesthetic and functionality of your firearm. Key Features: - Integrated grenade ring for a classic appearance - 4.678" overall length - Heat treated for added strength - Phosphate coated for corrosion resistance Summary: Transform your firearm with the KAK XM177 Flash Hider, perfect for those looking to maintain a classic look while ensuring compliance and reliability in the field.