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SIG Sauer MPX

GunCritic Score

Critic Rating

User Rating

19 Reviews

MSRP:

$2476.99

Used Price:

$2,069.99

Sale Price:

$2299.99

SIG Sauer MPX Gun Stats

SIG Sauer MPX

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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.[1] 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 MPX Specs

1 Brand

2 Category

Technical Data

Caliber

9mm Luger (9mm Parabellum) (9x19mm)

Action

Semi-Auto

Capacity

30 RD

Finish

Black

Gun Type

Pistol

SIG Sauer MPX Features

The SIG Sauer MPX is available as a pistol, submachine gun or pistol caliber carbine and is a gas-operated gun that operates on a short-stroke gas piston and multi-lug rotating bolt.  The recoil system includes a dual-recoil spring that sits over the bolt carrier group to eliminate the need for a buffer tube allowing for a wide variety of stocks to be attached on the rear-mounted picatinny rail.


SIG Sauer MPX Ballistics

9mm Luger (9mm Parabellum) (9x19mm) Ballistic Data
Range (Yards) Drop (inches) Velocity Energy Wind drift (inches) Time (milliseconds)
0 -0 1138 356 0 0
50 -3.5307 1050 304 0 137
100 -14.988 985 267 0 285
150 -35.3116 932 239 0 442
200 -65.3932 884 215 0 606
250 -106.7647 841 195 0 781
300 -160.657 802 177 0 964
350 -226.106 767 162 0 1155
400 -306.6746 733 148 0 1355
450 -406.3077 700 135 0 1564
500 -518.6297 669 123 0 1784

SIG Sauer MPX Capacity

The MPX is chambered in 9x19mm Parabellum and feeds from steel-reinforced polymer magazines made by Lancer Systems.  While the standard magazine capacity is the typical 30 rounds, Lancer also makes magazines with capacities of 10, 20 and even 35 rounds.  Aftermarket magazine manufacturers also offer a 50 round drum magazine for the MPX.
Measuring as little as 17.6 inches with an unloaded weight of 6.1 pounds, and with an overall length of 24 inches when a stock is extended, the MPX offers excellent maneuverability in all environments.  Considering its low recoil, the MPX surpasses its competition in ease of use as well as mobility.  The MPX’ modularity also allows the gun to be even smaller with different barrels and handguards attached.


SIG Sauer MPX Mobility

Mobility

SIG Sauer MPX Ergonomics

Ergonomics
The MPX has a control layout based on the AR15 with the improvements of an ambidextrous safety, charging handle and magazine release.  The grip that comes with the MPX is more ergonomic than the A2 style grip found on most ARs.  The MPX is available with a variety of handguard options thanks to the gun’s modularity.


SIG Sauer MPX Fit & Finish

The MPX is made with receivers cut from billets of 6061-T6 aircraft grade aluminum, the bolt is made of C158 steel and the bolt carrier is made from 8620 steel just as Eugene Stoner intended.  The MPX’s modularity includes a quick-detach barrel system that includes 2 screws to be removed that are hidden by the handguard.  The stocks can easily be swapped out for an ever-growing number of aftermarket options.
Fit and Finish

SIG Sauer MPX Parts & Upgrades

SIG Sauer MPX Variations

How much is a SIG Sauer MPX worth?

In 2023 a new or used SIG Sauer MPX value varies depending on supply and demand. In the last 12 months there is great demand for a SIG Sauer MPX and most rifles. The Price for a SIG Sauer MPX has increased in cost by $155.39 in 2023 compared to 2022.

Estimated New and Used Values for a SIG Sauer MPX Values are based on a basic model with no options or colors.

Condition Trade-In Private Party Dealer
New In box $1,326.27 $1,734.35 $2,040.41
Excellent $1,224.25 $1,632.33 $1,836.37
Very Good $1,122.23 $1,632.33 $1,836.37
Good $1,020.21 $1,530.31 $1,734.35
Fair $714.14 $1,326.27 $1,632.33
Poor $510.10 $1,020.21 N/A

Gun Value Conditions explained:

New in box - 100% condition in unopened box. Excellent - 95%+ condition with or without box.

Very Good - 90% - 95% condition (all parts/finish should be original).

Good - 80-90% condition (all parts/finish should be original).

Fair - 30% - 80% condition, parts, and finish may or may not be original. Must function properly and shoot.

Poor - under 30% condition. Firearm has severe wear and tear, does not function, or is damaged.

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SIG Sauer MPX Price History

SIG Sauer MPX Critic Reviews

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Sep 09, 2022

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Apr 18, 2022

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Feb 11, 2022

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Ryan Cleckner

gununiversity.com
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Oct 17, 2021

| Full review
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Michael Savage

lynxdefense.com
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Mar 27, 2015

| Full review
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Sep 13, 2021

| Full review
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Pat Cascio

survivalblog.com
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Jun 22, 2017

| Full review
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Jun 01, 2017

| Full review
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Richard Johnson

www.tactical-life.com
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Jan 06, 2021

| Full review
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Harrison Jones

harrysholsters.com
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Dec 29, 2015

| Full review
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Sep 22, 2010

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Iain Harrison

www.recoilweb.com
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Oct 05, 2017

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Mar 07, 2017

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Dec 13, 2022

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Brady Kirkpatrick

www.gunmade.com
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May 21, 2022

| Full review
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Nov 16, 2020

| Full review

SIG Sauer MPX Rate And Review

How would you like to rate SIG Sauer MPX?

Jul 24, 2019

Rating: 5/5

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heath p

Jul 02, 2018

Rating: 5/5

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Ryan G

Mar 08, 2018

Rating: 5/5

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Lester G

Feb 21, 2018

Rating: 5/5

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Max A

Feb 02, 2018

Rating: 4/5

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Dyman S

Dec 25, 2017

Rating: 5/5

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Matthew B

More reviews 6 of 19

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