Luth-AR Disconnector for M16 Black. This removes almost all rattle and sound from inside the firearm and is easily installed back into the firearm using the same dowel pin. This will guarantee that the disconnector stays in place and that it is secure when the bolt is cocked.This disconnector should last the life of the firearm with normal use and is easily maintained. It is highly recommended to perform a dry fire once installation of disconnector has been completed. Specifications for Luth-AR Disconnector AR15: Manufacturer: Luth-AR Caliber: .223 Remington Gun Make: AR Platform Weight: 0.2 oz Condition: New Package Contents: Luth-AR Disconnector AR15 Luth-AR LR-19A: Disconnector for M16 Black