The official M4A1-S Description states:
“With a smaller magazine than its unmuffled counterpart, the silenced M4A1 provides quieter shots with less recoil and better accuracy.”
The M4A1-S is a Counter-Terrorist exclusive rifle in Counter-Strike: Global Offensive and was added in the game on the August 14, 2013 Arms Deal update. It is a variant of the M4A4 assault rifle, replacing it if equipped in the loadout. It is a successor of the M4A1 from previous Counter-Strike games.
The M4A1-S in game is based off a Colt Model 723 “M16A2 Carbine” with an “M4” profile barrel.
In game, the rifle has 20 rounds per magazine and 40 rounds in its reserve. A new feature implemented is that the silencer now takes more time to attach and detach and it is already attached once the player purchases it. It’s rate of fire is slightly lower at 600 RPM. Otherwise, it works identically to the M4A1 found in previous games.
Popular CS GO Skins for the M4A1-S:
M4A1-S | Golden Coil
The magazine model of the M4A1-S depicts a curved 30-round 5.56×45 STANAG magazine (also used on M4A4), despite still having a 20-round capacity.
Statistically, the CS GO rifle is more popular than the M4A4 despite the magazine reduction, arguably due to its silencer and more controllable recoil.
The noise-reducing effect of the silencer is somewhat exaggerated. Though in-game shots are depicted as audible but quiet “pew-pew” noises, in reality a silenced gun would still produce 130-145 decibels of noise, which is still as loud as a jackhammer.
The weapon depicted is actually not a M4A1, but a Colt Model 723, a early predicessor to the M4 Carbine. This is identifyable due to the non-removable carry handle, while the M4 has a removable carry handle.
|Chest & Arm||32||23|
|Abdomen & Pelvis||41||28|
|Weapon||Finish||Rarity||Minimum Wear||Maximum Wear|
|Boreal Forest||Industrial Grade||0.06||0.8|