SIG MPX FOR SALE.
The SIG Sauer MPX was designed to be a replacement for the Heckler & Koch MP5. The HK MP5 had ruled the sub-gun world for years and SIG decided they wanted to upset that system. To do so, they had to design a gun that was more controllable, cheaper, and just overall better than the MP5.
The SIG MPX is a gas-operated submachine gun designed and manufactured by SIG Sauer, and is primarily chambered in 9×19mm Parabellum cartridge. It is a gas-operated firearm featuring a closed, rotating bolt. These design features, rare in submachine guns, were chosen to enhance the safety of the user and to have a more reliable firearm. It was designed in 2013 and was released to the general public in 2015. It features the SIG Sauer short stroke push-rod gas system to reduce the recoil and improve the reliability of the weapon.
The MPX, in its second generation, features a system that would allow for conversion from 9mm to .357 SIG or .40 S&W. However, since its inception, first party conversion kits have not been made available for either of the two production generations of the gun.
SIG Sauer also used the same gas piston system to develop the SIG MCX carbine.
The standard variant of the MPX comes with an 8.0 inch (20.3 cm) barrel and is chambered in 9×19mm Parabellum cartridge. It comes with a collapsible stock and a free-floating rail. It has a cyclic rate of fire of 850 rounds per minute (RPM).
The MPX is also available with different barrel lengths, ranging from 114 to 406mm (4.5- to 16-inch). The MPX submachine gun is only available for military and law enforcement use, while a semi-automatic only version is also available for the civilian market.
The semi-automatic version of the weapon can be registered as a Short-Barreled Rifle in most states in the United States.
The standard MPX submachine gun comes with no sights and a full length Picatinny rail system on the top of the weapon. Gen 2 MPX’s come with a flat faced Timney trigger and M-LOK rail.
The MPX has a short-stroke gas piston system in order to increase the accuracy of the weapon which operates in closed bolt. It is designed in this way to prevent water or dirt from entering the chamber and causing malfunctions as well as to use a suppressor with greater ease. It features an ambidextrous selector switch for fully automatic (law enforcement/military models) and semi-automatic. It also features an ambidextrous bolt catch, and the weapon’s exterior appears to be a cross between an AR-15 and a Heckler & Koch MP5A3. The barrel is free-floating and is surrounded by polymer/steel Picatinny rail (later M-LOK) mounts.
The charging handle of the weapon is at the back of the weapon, based on the AR-15 design. This is to ensure that cocking the weapon does not interfere with any optics mounted onto the Picatinny rail. The weapon’s rails are made out of cast steel and the standard weapon overall weighs 2.1 kilograms (4.6 lb).