Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits. Anti-spam check. Do not fill this in!==Uses== The M4 is the carbine version of the M16 assault rifle. It is especially favored by counter-terrorist and special forces units for close quarters combat because of its compactness and firepower. These features also make it useful for urban warfare. The M4 can be set to semi-automatic or three-round burst, while the M4A1 has the ability to go fully automatic. Summary: Please note that all contributions to the Deadliest Warrior Wiki are considered to be released under the CC-BY-SA Cancel Editing help (opens in new window) Retrieved from "https://deadliestwarrior.fandom.com/wiki/M4A1_Carbine"