These are OEM Sig Sauer MPX Magazines for the 9mm MPX. These magazines are made of translucent polymer by Lancer specifically for Sig Sauer that hold 20 rounds of 9mm ammunition.
SIG SAUER triple mag pouch made from rugged nylon with reinforced backing and bungees for use with all SIG MPX magazines. This versatile magazine pouch securely holds (3) 10. 20. or 30 round SIG MPX magazines with either bungee or friction retention.