ANECHOIC's suppressor features a hybrid titanium and aluminum construction for an excellent combination of weight and heat dissipation. Each suppressor comes included with a direct thread mount for easy out-of-the-box attachment. The Anechox 223L series is designed for use with .223 and 5.56 caliber rifles. This model features an ODG cerakote finish and includes a Titan series 1/2x28 TPI direct thread mount. *Sound reduction ratings are approximate based on measurements by the manufacturer and may vary depending on firearm setup and environmental factors.*