Oregon's Indoor Shooting Range
Southwest Firearms Forum
HighLine Firearms
Sporting Systems
Bi-Mart
Bear Creek Arsenal
J&B Firearm Sales
JavaScript is disabled
Our website requires JavaScript to function properly. For a better experience, please enable JavaScript in your browser settings before proceeding.

  • Join the #1 community for gun owners of the Northwest

    We believe the 2nd Amendment is best defended through grass-roots organization, education, and advocacy centered around individual gun owners. It is our mission to encourage, organize, and support these efforts throughout Oregon, Washington, Idaho, Montana, and Wyoming.

    Free Membership Benefits

    • Fewer banner ads
    • Buy, sell, and trade in our classified section
    • Discuss firearms and all aspects of firearm ownership
    • Join others in organizing against anti-gun legislation
    • Find nearby gun shops, ranges, training, and other resources
    • Discover free outdoor shooting areas
    • Stay up to date on firearm-related events
    • Share photos and video with other members
    • ...and much more!

sig sauer mpx

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 improves 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.

View More On Wikipedia.org
Recent contents
  1. jaytee0115

    Sig Sauer MPX 9mm 8"

      1. For Sale
    • $1
    • Corvallis
    • Oregon
    Has Timney drop-in flat trigger installed. Less than 1000 rounds through it. Comes with 4 30rd magazines. Sold No trades please.
  2. ktzdaman

    Sig Sauer MPX Gen 2 Carbine

      1. For Trade
    • Hillsboro
    • Oregon
    Looking to trade! Has the Timney trigger installed along with the radian charging handle! Very nicely setup! Has seen about 300 rounds. Comes with original box and 5x30 and 1x20 mags. Looking for bolt guns, scars, staccato, sig cross, tons of ammo. Try me! Prefer to meet at a cut above pawn.
  3. J

    Sig Sauer MPX 4.5 preferred

      1. Want to Buy
      2. Want to Trade For
    • Portland
    • Oregon
    I’m looking for an MPX pistol. 4.5” barrel preferred. I have stuff to trade or cash. Looking local before buying a used one from gunbroker. Thanks!
  4. Tacompton173

    Sig Sauer MPX 15 Handguard

      1. For Sale
    • $60
    • Sumner
    • Washington
    Used Factory OEM Sig Sauer MPX 15" keymod (not MLOK) handguard in good condition. Minor cosmetic imperfections as seen in photos. Handguard will include rail covers show in photos. You will need the retention pin, which you can easily pull off your existing handguard or buy online. Handguard has...
  5. L

    Sig Sauer MPX 9mm Mags -3: 35 Round

      1. For Sale
    • $130
    • Sweet Home
    • Oregon
    Up for sale: 3 - 35 round 9mm MPX mags, new in wrap. $130 shipped. Venmo or Zelle preferred. Text or call: Travis 541 990-3803
  6. ktzdaman

    Sig Sauer MPX PCC with extras

      1. For Sale
      2. For Trade
    • $3300
    • Hillsboro
    • Oregon
    Took this and my sp5 to the range today. Decided to keep the sp5 and move the mpx. Not getting enough time on it. Less than 500 rounds still. Comes set up with 16” barrel with taran tactical muzzle break. Taran tactical magwell. Radian charging handle. Gun came with Timney trigger Extras...
  7. AlHalvy

    Sig Sauer MPX 4.5 Barrel w/ Handguard.

      1. For Sale
    • $350
    • Oregon City
    • Oregon
    Sig Sauer MPX G2 4.5" Barrel w/ Handguard. These are factory Sig Sauer parts. Retail is $800 for the barrel. Unknown amount of rounds on it, but in great condition with excellent rifling. Asking $350 barrel and handguard. Can meet in Oregon City / Happy Valley 503-887-7600
  8. ktzdaman

    Sig Sauer Mpx Gen 2 4.5 barrel

      1. For Sale
    • $300
    • Hillsboro
    • Oregon
    Decided to go a different way. This barrel has seen about 100 rounds. Great condition! $300
  9. ktzdaman

    Two sig Sauer MPX 3x mag pouches

      1. For Sale
      2. For Trade
    • $100
    • Hillsboro
    • Oregon
    Bought these off of one of our best members new. They are the Velcro backed. Holds 3 mpx mags. I needed molle :( $100 for both! Meet in Hillsboro. Can ship.
  10. ktzdaman

    Sig Sauer MPX upper

      1. For Sale
    • $500
    • Hillsboro
    • Oregon
    Ordered this directly from sig. incredibly hard to get one of these! Decided to go a different direction. Unfired. Does have little scuffs on the connecting knobs for the lower from connecting to a copperhead. Maybe recoverable - haven’t tried. Barrel is not included. 500 firm. Meet in Hillsboro.
  11. ktzdaman

    Sig Sauer MPX Copperhead

      1. For Sale
      2. For Trade
    • $1300
    • Hillsboro
    • Oregon
    Decided to go a different direction with "truck gun" although this little bad boy may be the ultimate! Selling my sig Sauer mpx copperhead chambered in 9mm. All factory parts. Comes with original box, manual and one 20 round mag. Unknown round count but it in fantastic shape. The only blem is...
  12. J

    MPX factory basepads

      1. Want to Buy
      2. Want to Trade For
    • Portland
    • Oregon
    I’m looking for 1 to 5 oe basepads for sig mpx mags. I’ll pay cash or trade for them if I have something you want. If you have a/m ones you are trying to offload let me know, but I’d prefer the original ones.
  13. jaytee0115

    Sig Sauer MPX 8" Keymod

      1. For Sale
    • $2600
    • Corvallis
    • Oregon
    Selling my Sig Sauer MPX 8" with Keymod rail. This is a 2nd Gen MPX, but it does have a new Timney flat trigger installed that is coming with the 3rd generation models. This model is incredibly hard to find. The MPN is MPX-P-9-KM. Has less than a few hundred rounds. Selling to fund some things...
  14. HighLine

    New: Sig Sauer MPX Copperhead

      1. For Sale
    • $1899
    • Newberg
    • Oregon
    Only 1 in store Sig Sauer MPX Copperhead 9mm $1899.99 + background check or shipping https://www.highlinefirearms.com/products/sig-sauer-798681671748-3591
  15. soccerguy71

    Sig Sauer MPX Air Rifle .117

      1. For Sale
    • $185
    • Arlington
    • Washington
    Sig Sauer MPX Air Rifle 30 pellet capability magazine 2 JT Co2 Cylinders Box of copperhead pellets about 200 pellets
  16. ReidSpeed

    Sig sauer MPX 9mm

      1. For Sale
    • $1950
    • sherwood
    • Oregon
    I bought this gun new a year ago and have fired about 100 rounds through it, great fun. I also put on a romeo red dot sight on it which is awesome! for sale, no trades, cash only, will meet up at local dealer to handle the proper paperwork.
  17. O

    Price Drop! 30-round Sig Sauer MPX Magazines - NEW

      1. For Sale
    • $50
    • Monroe
    • Oregon
    I have (12) (10) new Gen 2 Sig Sauer MPX 30-round magazines. Just sold the gun and the new owner purchased the mags they wanted with it so now making the remaining mags available here. Price is $50/mag picked up in Monroe, OR. Will also ship at buyer's expense.
  18. kunu808

    Sig Sauer MPX 16" 1500 cash

      1. For Sale
    • $1500
    • HILLSBORO
    • Oregon
    Sig MPX 16" for sale. Less than 200 rds. Just rifle only. Irons/optics has been sold. Will come with 1 mag that came with gun and 1 brand new one still in package. Will also come with Radian Charging handle.
  19. HankDiesel

    Sig sauer MPX 9mm

      1. For Sale
    • $1550
    • Dallas
    • Oregon
    Sig sauer MPX 9mm 1 new 35rd mag Aftermarket stock and original stock Timney trigger and original This carbine runs great.
  20. B

    Like New Sig Sauer MPX K

      1. For Sale
    • $2000
    • Wilsonville
    • Oregon
    I have an almost brand new Sig MPX K in 9mm with one 30rd mag. $2,050.00
Optics Planet
Cerberus Training Group
Bear Creek Arsenal
Midway USA
Bi-Mart
Collectors West Gun Shows
Sporting Systems
Brownells
Oregon's Indoor Shooting Range
Southwest Firearms Forum
Back Top