Yo sup user. I am STANAG 4179 Polymer Magazine from Magpul, call me "PMag" for short. I am a replacement for STANAG 4179 Mag because I am made out of polymer, which made me resists against rust. Also I am lighter, more durable than the original STANAG Mag. I am the most chosen 5.56x45mm NATO Mag for 30-round capacity and can add additional attachments on me like dual mag connector, Ranger Plate at the bottom of the mag,...