Description Description Keep your Sig MPX™ fed with the Sig Sauer® MPX 9mm 20-Round Magazine. This factory magazine features lightweight polymer construction for unparalleled strength and a lightweight design. Metal feed-lips combine with a tough polymer follower and steel wire spring to ensure smooth, reliable feeding with proper cartridge alignment in virtually any high-stress environment. What’s more, this factory magazine features aggressive texturing at the base for positive handling with a sure grip for lightning-fast reloads. What are you waiting for? Order today! Lightweight polymer construction Metal feed-lips Tough polymer follower Steel wire spring Aggressive texturing View AllClose