The AC-Unity 30RDS window magazine for AK74 cal. 5.45x39mm is a polymer magazine designed for Kalashnikov pattern rifles in cal. 5.45x39mm among are AK74, AK74N, AK105, AK107, AK12, AKS74, AKS74U, AKA6. It is a durable impact resistant and lightweight magazine which has optimally engineered surface grip for easy use and control. Reinforced bolt hold open follower (Yugo Style BHO) works as a last round fired bolt hold open on all AKs. The magazine lips will not break or crack when dropped; they will stay in the correct position and not spread or balloon because of the spring pressure. The material composition allows for long time storage, and the carbon wire spring will not degrade from use or loaded storage. These magazines have a long lifetime and can survive maximum temperature fluctuations from -30°C to +120°C degrees, and the double-sided clear window allows to see the rounds left.