The Tiger Rock Inc. MZ-AR4-ZBG AR-15/.223/5.56 Custom Ported Muzzle Brake in Cerakote Zombie Green elevates your shooting performance. Engineered from CNC machined tool steel, this durable muzzle brake utilizes its 10 ports to minimize recoil and back pressure, enhancing accuracy and speed in follow-up shots. High-quality CNC machined tool steel for durability 10 strategically placed ports for reduced recoil Heat-treated construction ensures long-lasting use Compatible with most .223 and 5.56 NATO rifles Unique Cerakote Zombie Green finish for style and protection Machined wrench flats for easy installation and removal Upgrade your AR-15's functionality and aesthetics with the MZ-AR4-ZBG muzzle brake today.