Description: J&J Commando Barrel Precision engineered from the finest materials to ensure you the most accurate shots possible. The Commando features an M-16 style threaded muzzle break to give you the authentic military look and feel. You also have the ability to move up the ranks to the "Sarge" muzzle break to lead the platoon into battle. While some personnel may stay behind to protect the fort, the "Defender" muzzle break will help them stand their ground with a vengeance. Manufactured from 6061 T6 Aluminum, this barrel is CNC threaded to accept the M-16, "The Sarge," Apex Adapter, and Defender muzzle breaks. Comes with M-16 muzzle break installed, other muzzle breaks available separately.