SIG MPX

Submachine Gun (SMG) / Machine Pistol / Assault Carbine

Switzerland | 2013

"The SIG-Sauer MPX Submachine Gun was the first of its kind to sport a fully-enclosed rotating bolt and pistol system."

Image from SIG-Sauer marketing material.

Performance
Performance specifications presented assume optimal operating conditions for the SIG MPX. Information presented is strictly for general reference and should not be misconstrued as useful for hardware restoration or operation.

660 ft
201.2 m | 220.0 yds
Max.Eff.Range

800
Rounds-Per-Minute
Rate-of-Fire

1,300 ft/sec
396 m/sec
Muzzle Velocity

Physical
The physical qualities of the SIG MPX. Information presented is strictly for general reference and should not be misconstrued as useful for hardware restoration or operation.

610 mm
24.02 in
O/A Length

203 mm
7.99 in
Barrel Length

5.95 lb
2.70 kg
Weight

Selective-Fire; Gas-Operated; Enclosed Rotating Bolt and Pistol System
Action

9x19mm Parabellum
Caliber(s)

30-round detachable box magazine
Feed

Iron front and Rear.
Sights

Variants
Notable series variants as part of the SIG MPX Submachine Gun (SMG) / Machine Pistol / Assault Carbine family line.

MPX - Base Series Designation

MPX Standard - Base variant; folding stock or 3-position assembly; fire selector; 8" barrel length.

MPX-K - Compact variant with 4.5" barrel length

MPX-P - Machine pistol variant; semi-automatic only fire; 8" barrel length.

MPX-PSB - Machine pistol variant; semi-automatic only fire; Pistol Stabilizing Brace (PSB) fitted; 8" barrel length.

MPX-SD - Integrally-suppressed variant; 8" barrel length

MPX-C - Carbine form; 16" barrel length

MPX Copperhead - Pistol Caliber Carbine form of 2022.

Authored By: Staff Writer | Last Edited: 04/25/2022 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

For a firm recognized globally for its excellent semi-automatic handguns and long guns, SIG-Sauer turns heads with its introduction of the SIG MPX series automatic weapon. The type can fulfill the roles of machine pistol, submachine gun and carbine through its inherently modular design approach. Full support of tactical accessories and the robustness and reliability of the SIG-Sauer brand label make the MPX a serious competitor in the small-caliber marketplace - general dominated by AR-15 clones and the German Heckler & Koch HK MP5 family of automatic guns.

The weapon is recognized as the first of its kind to sport a fully-enclosed rotating bolt and pistol system to increase general operating safety and reliability.

Four major models are marketed: the MPX (standard), MPX-K (compact), MPX-P (machine pistol), MPX-SD (supressed model), MPX-PSB (machine pistol) and MPX Carbine (assault carbine form). Are all in 9x19mm Parabellum chambering though some limited to Semi-Automatic-Fire-Only (SAFO). Weight differs between each mark as does dimension and stock type fitted.

The grip has an AR-style ambidextrous control scheme (selector and magazine release) to support both left- and right-handed shooters. The action has a bolt hold-open feature to indicate last-round-fired and the bolt-release sports an ambidextrous design quality. Additionally, the rotating bolt system is fully-locked and closed to help protect against a bullet obstruction or water entry in the bore. The gas-operated, short-stroke pistol within is designed to reduce the inherent recoil and general fouling consistent with repeated firings. The magazine well is beveled and flared for ease-of-reloading for "sight-unseen" operation. Sections of Picatinny rail are set over the length of the receiver and handguard, under the handguard and along the sides of the handguard for the fitting of various tactical accessories - optics over, foregrips/flashlights/aimers under and any other assisting product along the sides. For further customizability, the barrel length and stock can be reconfigured by the operator in-the-field.

Optional features include 10-, 20-, and 30-round curved detachable box magazines and integral QD sling point loops. The stock can be removed for a shorter overall profile or a telescoping version installed in its place. Additionally, a folding stock is offered for that "truer" tactical appearance. The handguard has rail-adaptable sections of aluminum or carbon fiber construction. The upper receiver is monolithic (formed from a single large piece) set over a free-floating barrel and has an integral M1913 rail as part of its design. Barrel lengths are adjustable for 4.5", 6.5" and 8" lengths.

It is planned that the MPX will eventually support .357SIG and .40 S&W chamberings through after-market conversion kits.

Content ©MilitaryFactory.com; No Reproduction Permitted.

Operators
Global customers who have evaluated and/or operated the SIG MPX. Nations are displayed by flag, each linked to their respective national small arms listing.

Contractor(s): SIG-Sauer - Switzerland

[ Switzerland; United States ]

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Image from SIG-Sauer marketing material.

Similar
Developments of similar form-and-function, or related, to the SIG MPX Submachine Gun (SMG) / Machine Pistol / Assault Carbine Specifications and Pictures.

SIG MPX Copperhead

Going Further...
The SIG MPX Submachine Gun (SMG) / Machine Pistol / Assault Carbine appears in the following collections:

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