CS2 M4A1-S: price, damage, magazine and silencer stats

The M4A1-S is a rifle in Counter-Strike 2 (CS2) for the Counter-Terrorists. This guide lists its values in Valve’s game files as of Oct. 22, 2026, and the changes Valve has listed for the weapon in its update posts.

M4A1-S stats at a glance

Who can buy the M4A1-S

The weapon’s entry in the item file lists Counter-Terrorists as the class that uses it. In the weapon file, the price is 2,900 and a kill with it carries an award of 300.

The weapon file also sorts it as a primary rifle that is fully automatic and fires one bullet per shot.

Damage, armor and penetration

The base damage is 38 per bullet, with a headshot multiplier of 3.475.

The armor ratio is 1.4 and the penetration value is 2.0. The weapon’s range is 8192, with a range modifier of 0.94.

Magazine, reserve ammo and reloading

The M4A1-S holds 20 bullets per magazine, and the file lists a reserve of three magazines.

Valve changed how reloading works in the March 18, 2026 update. In its announcement, Valve wrote that when you reload, you drop the used magazine and discard all of its remaining ammo, and a new full magazine is taken from the reserves. Valve also wrote that “most” weapons got a three-clip fill-up, with some getting fewer or more.

Valve’s update notes add that reserve ammunition is now shown as a number of magazines, shells or bullets, depending on the weapon. In the same notes, Valve wrote that the fill level of the current weapon is displayed below the ammo count.

Silencer

The weapon file lists the silencer type as detachable. Next to the regular effects, the game files also hold a silenced shot sound and a silenced muzzle flash effect.

Movement speed and handling values

The maximum movement speed is 225 in both entries the file lists. Other timing values in the weapon file:

The recovery transition starts at the second bullet and ends at the fifth. Standing inaccuracy is listed as 0.0049 and crouching inaccuracy as 0.0041.

Several accuracy and recoil entries come as pairs of values: spread is 0.0006 and 0.0005, recoil magnitude is 25 and 21, and movement inaccuracy is 0.09288 and 0.122.

Changes Valve has listed for the M4A1-S

Valve’s update posts name the weapon in these lines:

• Oct. 6, 2023Valve wrote that it adjusted the M4A4 and M4A1-S draw animation to start from out-of-frame.
• Oct. 9, 2023Valve wrote that it fixed the bolt not moving during the M4A4 and M4A1-S deployment animations.
• Aug. 14, 2025Valve wrote that it improved the deploy animations for the AWP, M4A4 and M4A1-S. The same update added the M4A1-S | Solitude as a limited-time item in The Armory.
• Oct. 29, 2025Valve wrote that Retake loadout cards now randomly offer the M4A1-S or the M4A4 if a player has both equipped in their CT loadout.

FAQ

Which side can buy the M4A1-S in CS2?

Counter-Terrorists. The item file lists them as the class that uses the weapon.

How much does the M4A1-S cost?

The weapon file lists a price of 2,900.

How much damage does the M4A1-S do?

The file lists 38 damage per bullet and a headshot multiplier of 3.475.

How many bullets does the M4A1-S hold?

A magazine holds 20 bullets, and the file lists a reserve of three magazines.

What happens to the ammo left in the magazine when you reload?

Since the March 18, 2026 update, Valve wrote, the remaining ammo in the magazine is discarded and a new full magazine is taken from the reserves.

How fast can you move with the M4A1-S?

The file lists a maximum speed of 225.