# M4 Carbine ![[M4Carbine.svg]] > [!Infobox] Carbine, <br> Caliber 5.56 mm, M4 > | | | |:------------------- | ---------------------------------------------------:| | ***Type*** | [[Firearm Types#Assault rifle\|Assault rifle]], <br>[[Firearm Types#Carbine\|carbine]]| | ***Origin*** | ![[UnitedStatesFlag.svg\|inlL\|24]] &nbsp;[[United States]] | | ***Designed*** | 1982-1993 | | ***Produced*** | 1987-present | | ***Mass*** | 2.92 kg | | ***Length*** | 756 mm, stock retracted | | | 838 mm, stock extended | | ***Barrel length*** | 368 mm (14.5 in) | | ***Cartridge*** | 5.56x45mm NATO | | ***Action*** | [[Action#Direct impingement\|Stoner expanding gas operated]], [[Firearm#Closed bolt\|closed]] rotating bolt | | ***Rate of fire*** | 700-970 RPM | | ***Muzzle velocity*** | 910 m/s | |***Derivative of***| [[M16]] | *M4A1 Standard* #unfinished