Alek of Game Life: “One of the most popular questions in CS:GO is about CS:GO CT weapons comparison. Should we use an M4A1-S or M4A4? Since AUG became part of meta, should we use AUG instead of M4 guns? In this article, we will try to help you to understand the difference between those weapons.”
Source: N4G PC CS:GO CT Weapons Comparison: M4A1-S Vs M4A4 Vs AUG