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The M16A4 is a 3-round burst assault rifle in Counter-Strike Online, exclusive to the Counter-Terrorists. Its Terrorist counterpart is the AN-94.


The M16A4 is an assault rifle which only fires in 3-round burst. It has medium accuracy and does higher damage than the AN-94 due to its caliber being 5.56 NATO and its 3-round bursts shooting mode. It has very fast reload for its class.

In Taiwan/Hong Kong region, this weapon becomes a default weapon in all player's inventories after the Free Update. In other regions, they only removed the level restriction


  • Decent accuracy
  • Cheap price
  • Fast reload
  • Free (Taiwan/Hong Kong region)


  • Heavy weight
  • Not suitable for close-quarter combat due to its weight and low rate of fire
  • Purchasable only for the Counter-Terrorist


  • Always try to aim for the head in close-quarter combat, otherwise you will get killed due to its burst-fire disadvantage.
  • For middle-range combat, aim at the chest, the bullets might hit the enemies' head.
  • For long-range combat, aim for the gut area.
Range 0m 36m
Armor Yes No Yes No
Head 76 128 72 120
Mode Buy cost Ammo cost Total
Original $2800 $180 $2980
Scenario $2800 $1200 $4000


  • 3-round burst (+1)
  • Faster reload time (-0.4 seconds)
  • Higher rate of fire (+5%)
  • Same weight
  • Same knockback and stun powers
  • Same price ($2800)
  • Does lower damage (-1)
  • Lower accuracy (-1%)
  • Higher recoil (+1%)

Famas icon
  • Higher damage (+1)
  • Lower recoil (-8%)
  • Higher clip size (+5)
  • Shorter reload time (-1.1 seconds)
  • Same accuracy (90%)
  • Same ammo type (5.56 NATO)
  • Has 3-round burst mode
  • Purchasable only for the Counter-Terrorist
  • More expensive (+$550)
  • Lower rate of fire in burst mode (-3%)
  • Heavier (+10%)
  • Does not have full-auto mode

M4a1 icon
  • Cheaper (-$300)
  • Higher accuracy (+2%)
  • 3-round burst fire mode
  • Faster reload time (-1.2 seconds)
  • Same clip size (30/90)
  • Same ammo type (5.56 NATO)
  • Purchasable only for the Counter-Terrorist
  • Does lower damage (-2)
  • Higher recoil (+2%)
  • Lower rate of fire (-6%)
  • Heavier (+5%)
  • Cannot attach silencer
  • Does not have full-auto mode

Release date[]

  • South Korea: 2 December 2010.
  • Taiwan/Hong Kong: 7 December 2010.
  • China: 8 December 2010.
  • Japan: 22 December 2010.
  • Indonesia: 10 April 2012.
  • Singapore/Malaysia: 9 May 2012.
  • CSN:Z: 23 September 2014.
  • Vietnam: 26 March 2015.


Firing sound

Reload sound

Draw sound


  • The Colt logo can be clearly seen on the lower receiver while reloading.
  • Before the Free Update patch, this weapon used to have level restriction. The players must achieve the required level (depending on each region) or higher to purchase it. It is also one of the first weapons which has a level restriction, alongside AN-94.
    • This rifle can still be gifted to players below the designated level, and can be bought but cannot be used until the level restriction is met.
    • For Taiwan/Hong Kong region, this weapon now becomes default after the Free Update.
  • Its drawing animation is based on the M4A1 in Condition Zero.