Sig Sauer MPX-K 9mm 4.5" SBR, Black, Collapsible Stock
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Sig Sauer MPX-K 9mm 4.5" SBR, Black, Collapsible Stock

Code: MPX-K-9-T-KM-SBR
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$1,699.99

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Product Description

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Description: Sig Sauer MPX-K 9mm 4.5" SBR, Black, Collapsible Stock. Unconventional design, unmatched performance, and familiar AR handling. The SIG MPX redefines the submachine gun category with a new level of operator safety, in-field adaptability and proven reliability in the harshest environments. Completely ambidextrous, the SIG MPX is great for left- or right-handed shooters with its dual-sided selector switch, magazine release, charging handle and bolt release. The SIG MPX operates from a fully-closed and locked rotating bolt, offering enhanced reliability and safety in use. A short-stroke gas piston allows the SIG MPX to run all weights and brands of 9mm ammunition with no adjustments to the gas valve. A full-length picatinny rail allows for solid, consistent mounting of optics and targeting lasers. SIG SAUER folding iron sights come standard.

Every aspect of the SIG MPX firing system has been rigorously designed and tested.  So in the heat of the moment, you can respond confidently and effectively, even under adverse conditions.

The SIG MPX gives users the freedom to change barrel length and stock configuration, all while in the field.  There's no challenge too big or too small for this highly versatile. firearm.

With the SIG MPX, we set out to reinvent the standard.  Use our full line of accessories to assemble a full weapons system that's yours alone.

With many SIG MPX components available you will be able to find the right combination for any operation.

This SIG MPX package includes the following:

  • 1 SIG Collapsible stock
  • 1 SIG 30 Round 9mm magazine
  • 1 SIG QD low profile socket
  • 1 SIG 2" KEYMOD rail adapter
  • 1 black nylon sling

SPECS:

  • Caliber: 9mm
  • Action Type: Semi-Auto
  • Operating System: Closed fully locked short stroke pushrod gas system
  • Stock Type: Collapsible
  • Forend Type: Aluminum mono rail Key Mod
  • Weight Without Magazine: 5.6 lbs
  • Overall Length: 27.75"
  • Folded Length: 17.5"
  • Rifling: 1:10 in
  • Thread Pitch: 13.5 x 1 LH
  • Barrel Length: 4.5"
  • Trigger Type: AR Style
  • Trigger Weight: 5.5-9.0 lb
  • Mag Type: Lancer polymer with steel insert
  • Mag Capacity: (1) 30 Round included - 10 and 20 Round magazines also available

ALL NFA RULES APPLY.

Note: This item will only ship to a Federal Firearms License Dealer (FFL). Before this product is shipped your FFL Dealer must email or fax a valid FFL and SOT to Midwest Gun Works. It is the responsibility of the purchaser, to check your local laws before ordering products from Midwestgunworks.com. Please check your State, County, and City laws for restrictions before ordering.  Please have your FFL dealer fax their FFL to 636-475-7303 or email to [email protected].  When sending the FFL to Midwest Gun Works be sure to include the customer name and order number.

Specifications

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  • Barrel Length: 4-1/2"
  • Barrel Thread Pitch: M13.5 x 1 LH
  • Brand: Sig Sauer
  • Caliber: 9mm
  • Finish / Color: Black
  • Firearm Type: Rifle
  • Magazine Capacity: 30
  • Models Fit: Sig Sauer MPX
  • Type: Semi-Auto

Rules & Regulations

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Firearm Purchasing Policy

Midwest Gun Works sells firearms only in accordance with all Federal, State & Local firearms regulations. Midwest Gun Works will only ship a Firearm to a Federal Firearms License holder (FFL). FFL holder must be located within the United States. We do not and will not ship firearms internationally. In order for Midwest Gun Works to ship your firearm purchase, you must complete the following steps:

  1. Midwest Gun Works must receive a legible and SIGNED copy of the Federal Firearms License from the dealer that will receive the firearm. This can be done via fax, email or standard mail.
  2. Payment must be received via Credit Card

Important note: Please insure that you or your FFL dealer includes your name and order number with FFL when Emailed or faxed.

Please have your FFL dealer email their FFL to [email protected] or fax it to 636-475-7303

Please contact us directly if you have any questions pertaining to transaction procedures or details concerning the Firearm being purchased.

Shipping

WE WILL ONLY SHIP TO VALID FFL DEALERS.

Once payment and a signed FFL copy have been received, Midwest Gun Works will then process and prepare the firearm for shipment. All firearms are typically shipped via UPS or USPS Priority Mail. Most shipments going to Alaska or Hawaii will be shipped via USPS. Shipping rates vary according to geographical location and final value of Firearm being purchased. Minimum shipping rates are as follows:

  • Long Guns: Minimum shipping rate is set at $32.00, with any additional charges being added once final value and location of receiver have been established.
  • Hand Guns: Minimum shipping rate is set at $41.00, with any additional charges being added once final value and location of receiver have been established.

* Any additional shipping charges not shown during online check-out will be presented to the customer for approval prior to processing the order.

Once your FFL Dealer receives the firearm, you as the purchaser will then be required to fill out all pertinent paperwork with them in order to take possession of your firearm.

It is the responsibility of the purchaser to make sure that they comply with all federal, state and local laws. If you need more information about restrictions in your area please visit the ATF's website by clicking HERE.

States with applied firearm restrictions:

  • Stripped lower receivers will NOT be shipped to the following states:

    • Connecticut
    • Illinois
    • Massachusetts
  • Complete AR and AK receivers will NOT be shipped to the following states:

    • California
    • Connecticut
    • Illinois
    • Maryland
    • Massachusetts
    • New Jersey
    • New York
  • Non-Compliant AR or AK models & "Assualt Weapons" will NOT be shipped to the following states:
    • California (No "assault weapons" can be shipped.)
    • Connecticut
    • Illinois (Includes shotguns with fixed mags over 5 rounds or any shotgun that accepts detachable magazines)
    • Maryland
    • Massachusetts
    • New Jersey
    • New York
    • Washington

Midwest Gun Works DOES NOT ship high-capacity magazines (those greater than 10 rounds) with firearms to the states listed below.

Midwest Gun Works WILL NOT replace high capacity magazines with state compliant magazines.

Midwest Gun Works DOES NOT offer refunds in place of the magazines.

States with applied magazine restrictions:

  • California - no magazines greater than 10 rounds
  • Colorado - no magazines greater than 15 rounds
  • Connecticut - no magazines greater than 10 rounds (larger with a valid permit.)
  • Delaware - no magazines greater than 17 rounds.
  • Hawaii - no pistol magazines greater than 10 rounds
  • Illinois -
    • No pistol magazines greater than 15 rounds
    • No rifle magazines greater than 10 rounds
    • Chicago, Highland Park, Cook County, Dolton, Homewood & Oak Park- no magazines greater than 10 rounds
  • Maryland - no magazines greater than 10 rounds
  • Massachusetts - no pistol or rifle magazines over 10 rounds and no detachable shotgun magazines over 5 rounds
  • New Jersey - no magazines greater than 10 rounds
  • New York - no pistol or rifle magazines over 10 rounds and no detachable shotgun magazines over 5 rounds
  • Rhode Island - no magazines greater than 10 rounds
  • Vermont - no pistol magazines over 15 rounds and no rifle or shotgun magazines over 10 rounds
  • Washington -
    • No magazines greater than 10 rounds
    • No semi-auto shotgun fixed magazine greater than 7 rounds
  • Washington D.C. - no magazines greater than 10 rounds

Exceptions:

  • L.E.Os must provide both their credentials and a letterhead signed by their department's superior officer stating that the firearm will be used in the execution of the L.E.O's duties.
    • Midwest Gun Works only recognizes City Police Officers, County Sheriff Deputies, and State Police (including Highway Patrol) as L.E.Os.
  • Not all of the states listed may have L.E.O. exemptions.
    • Please contact us BEFORE placing your order.
  • Midwest Gun Works does NOT ship directly to L.E.O.; the order must go to an FFL.
    • Midwest Gun Works does NOT make exceptions for this policy.

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NFA Information

Massachusetts Minnesota Montana North Dakota Hawaii Idaho Washington Arizona California Colorado Nevada New Mexico Oregon Utah Wyoming Arkansas Iowa Kansas Missouri Nebraska Oklahoma South Dakota Louisiana Texas Connecticut New Hampshire Rhode Island Vermont Alabama Florida Georgia Mississippi South Carolina Illinois Indiana Kentucky North Carolina Ohio Tennessee Virginia Wisconsin West Virginia Delaware District of Columbia Maryland New Jersey New York Pennsylvania Maine Michigan Alaska
Suppressors, SBRs & SBSs Legal
Suppressors, SBRs & SBSs Not Legal
Suppressors Only
Suppressors & SBRs Only
SBRs Only
SBRs & SBSs Only

WHAT ARE NFA "CLASS III" ITEMS?
- Class III items include (but are not limited to): machine guns (MG), suppressors/silencers (SS), destructive devices (DD), all other weapons (AOW), short-barreled rifles (SBR) and short-barrel shotguns (SBS).

  • SBR: A rifle having a barrel length LESS than 16" and/or an overall length less than 26".
  • SBS: A shotgun having a barrel length LESS than 18" and/or an overall length less than 26".
  • Suppressor: Suppressor, Silencer, Can, Firearm Muffler are all legally the same thing. A Suppressor is a device which decreases the sound of the expelled round by more than 3 decibels. NOTHING silences a firearm - Some Suppressors make firearms sound quieter than others - very few make a firearm "Hollywood Quiet".
  • AOW Usually refers to a firearm that is manufactured to be disguised as something else:
    • Fountain Pen Guns or Walking Cane Guns are classified as AOW's.
    • A pistol having a vertical foregrip attached is classified as an AOW.
    • A smooth bore firearm (Shotguns have stocks), with a barrel less than 18", and came from the factory with only a pistol grip and has NEVER had a stock attached to it, is classified as an AOW Firearm.
    • The NFA transfer tax for an AOW is only $5 not the "normal" $200 tax stamp cost.

WHY WOULD ANYONE WANT A SUPPRESSOR?
- A silenced firearm is eminently more enjoyable to shoot than one without a suppressor. Suppressors generally increase the accuracy of a host firearm while reducing recoil and eliminating up to 90% of the muzzle signature. Shooters are able to concentrate more on breath control and trigger pull when they are not subjected to the fatigue and distraction of a deafening, bright, muzzle report. Beginning shooters are typically not intimidated when introduced to the shooting sports with a suppressed firearm and are able to easily hear instructions given to them by trainers as the report of a host firearm is reduced to below the OSHA guideline level for hearing damage. Suppressed firearms are also less likely to disturb any people, livestock, or wildlife that may be in close proximity to where you shoot.

YES, CLASS III ITEMS ARE LEGAL, AND THEY ARE EASY TO OBTAIN.
- No, you do not need a license to purchase Class III items but you do have to pay a one-time $200 tax for each Class III item you purchase. You also have to live in a state where Class III items are legal and have to meet certain criteria to be eligible to own one.

- Determine whether or not your state allows you to own a Class III item. Class III items are legal but they are regulated on a per-state basis. However, the National Firearms Act (NFA) branch of the Bureau of Alcohol, Tobacco, Firearms and Explosives (BATFE) ultimately controls any transfers, and all Class III items are registered by this branch. Individuals, corporations, and trusts can legally purchase and possess Class III items in 44 states. Some states differ with which type of Class III items may be owned. However, if you are a dealer, manufacturer, peace officer, or a law enforcement agency or other government agency, there are additional states where you can own a Class III item.

WHO CAN OWN A CLASS III ITEM?
- Anyone who is a legal U.S. resident, 21 years of age and older, a non-felon, and lives in one of the states that allow private ownership of a Class III item. All Class III items are illegal in the following states: CA, HI, IL, NJ, NY, RI & Washington D.C.

I QUALIFY PERSONALLY AND GEOGRAPHICALLY TO OWN A CLASS III ITEM, NOW WHAT?

  1. Choose a product.
  2. Locate a Class III dealer in your state.
  3. After the monetary transaction takes place of the Class III item, it will be assigned to you and separated from the rest of the inventory, ensuring that you have a specific product serial number for your ATF Form 4.
  4. Once you have an assigned product serial number, the Class III dealer will then give you the ATF Form 4 (5320.4), Application for Tax Paid Transfer and Registration of Firearm, in duplicate with the serial number of the product filled out in the appropriate sections. You must fill out the rest of the form in duplicate. You can download the form 4 HERE.
  5. You will send in a $200 check or money order with the completed application, along with a recent photo and fingerprint cards.

STEPS TO COMPLETING YOUR FORM 4 AS AN INDIVIDUAL

  1. Obtain the ATF Form 4 (5320.4) (Application for Tax Paid Transfer and Registration of Firearm) from your dealer in duplicate. Some information the form requires is your name and address, the model of the Class III item you are purchasing, the overall length of the Class III item, the caliber or gauge of the Class III item, the serial number of the Class III item, and the manufacturer's information. Make sure the dealer signs the appropriate fields. Remember to complete all information in duplicate.
  2. Fill out the required information on the front of the form, including your name and address. Complete the back by answering the questions and stating the reason you are acquiring the Class III item. Sign and date the back of the form. Again, remember to complete all information in duplicate.
  3. Affix a recent color passport-sized photograph of yourself on the back of each copy of the form.
  4. Acquire a signature of the chief law enforcement officer of your county or your local sheriff. Don't let this step scare you; this is a routine request. If you feel that your police chief or sheriff will not sign the Form 4 because of personal or political concerns with the Second Amendment, do not worry. You can bypass them by purchasing the Class III item via a Limited Liability Company (LLC), corporation, or under a trust.
  5. While you are at the station obtaining the required signature, ink up your fingers and get two copies of FBI fingerprint cards (FBI Form FD-258) that you will send in with the two duplicates of Form 4.
  6. Place both completed copies of Form 4, the two copies of FBI fingerprint cards, and the completed Certification of Compliance form in an envelope, along with a check or money order (payable to Bureau of Alcohol, Tobacco, Firearms, and Explosives) for $200 and mail to the address listed on Form 4. We advise that you use a check and not a money order so you can see when the ATF cashes your check. This is a great way to confirm if the form actually arrived and is being processed. Otherwise, you may just be waiting for an extended period of time for approval, when, in fact, your paperwork never arrived.
  7. After the ATF approves Form 4, they will put a stamp on one of the two copies you sent them and then send it to the dealer where you purchased the Class III item. The dealer will then notify you that the paperwork has returned and that the Class III item is ready for pickup.

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