The U.S. Marine Corps has officially adopted the M4 carbine to replace the M16.
An official confirmed to Military.com on Tuesday that Commandant Gen. Robert Neller has approved the decision, which follows similar moves by the U.S. Army and Special Operations Command.
Many Marines already have the M4, which has been issued to the select members of the service for about a decade.
The weapon’s shorter barrel, compact size and lighter weight make it ideal in tight quarters such as urban operations.
The transition is expected to be complete by the Sept. 30 end of fiscal 2016.