This replacement or spare magazine is compatible with your AK-74. It is constructed of DuPont Zytel polymer with injection molded mag follower and mag spring formed from chrome silicone wire. Made in the USA.
Specifications:

Caliber	5.45x39mm
Capacity	40
Finish	Black
Model	AK-74
Material	Polymer
Type	Detachable
Model Fit	AK-74
Brand Fit	AK-47 Platform
Max Capacity	40