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Sig Sauer MPX Magazines

About the Sig Sauer MPX

The Sig Sauer® MPX™ is one of the most reliable Pistol-Caliber Carbines (PCC) platforms currently on the market and is sought after by a variety of civilian and law enforcement personnel for its impeccable accuracy, reliable performance, and adaptability. Chambered for 9x19mm Parabellum, every aspect of the SIG MPX firing system has been rigorously designed and tested and features familiar AR controls that allow you to respond confidently and effectively in virtually any high-stress target or self-defense environments. Further, the full-length Picatinny rail system on top of the weapon allows you to easily add your favorite red dot sights while the free-floating barrel is surrounded by Picatinny rail or M-LOK mounts so you can mount your favorite weapon lights or lasers and other rail-mounted firearm accessories.  

Based on the AR-15 design, the charging handle is located at the back of the rifle so it doesn’t interfere with any mounted optics when charging the weapon. Plus, this PCC features an ambidextrous safety selector and ambidextrous bolt catch so both left- and right-handed shooters can enjoy easy and intuitive use with the SIG MPX. To top it all off, the MPX features a short-stroke gas piston system for superior accuracy and features a closed bolt design to allow easy integration of a suppressor and to help prevent water or dirt from entering the chamber, causing potential malfunctions.

What is a short-stroke gas piston system?

A short-stroke gas piston system is a type of gas-operated reloading system found in many auto-loading firearms today including the Sig Sauer MPX. When you fire a round, the force of the gases push a piston back to cycle a new round into the chamber. The piston is located inside the gas tube and as gas is siphoned into the gas tube, the gas piston is sent rearward. While the gas piston is sent reward, the bolt, which is attached to the gas piston, is unlocked and ejects the spent casing. When the gas piston and bolt reach the rearmost position of the receiver, the recoil spring pushes them forward and loads a new round in the process. This cycle happens every time you pull the trigger. Short-stroke gas piston systems usually have slower part wear and are more reliable on shorter-barrel firearms and suppressed guns.

Why chose the Sig Sauer MPX?

The Sig Sauer MPX is one of the most reliable PCC you can buy thanks to plenty of rail space for your optics and weapon-mounted accessories as well as its chambering in 9mm making it an ideal choice for home defense. Known for providing the best selection at a low, affordable price, GunMag Warehouse is your Sig Sauer MPX magazine destination! Shop our full collection today and stock up on spare Sig Sauer MPX Magazines for your patrol setup, home defense pistol, or carbine today!