Its rate of fire is slightly lowered at 600 RPM, slightly lower than the average assault rifle fire-rate or 667.
In game, the weapon's capacity and reserve capacity is reduced compared to its predecessor, at 20 rounds per magazine and 80 rounds in reserve, which is the lowest out of all assault rifles. The M4A1-S in game is based off a Colt Model 723 'M16A2 Carbine' (an early predecessor to the M4 Carbine identified by the non-removable carry handle) with an 'M4' profile barrel. The M4A1-S is the reintroduction of the original M4A1 from earlier Counter-Strike games, originally replaced by the M4A4 in Global Offensive.
