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SIG SAUER MPX COPPERHEAD K 9MM 4.5″ BARREL 20-ROUNDS NO BRACE

More Information
Barrel Length 4.5
Caliber 9mm
Capacity 20
Condition New in Box
Finish Per Color Black
Frame Per Material Aluminum
Manufacturer Sig Sauer
Manufacturer Part Number PMPX-4B-CH-NB
Model MPX Copperhead K
Type Semi Auto Handguns – Tactical
UPC 798681671779

Original price was: $1,399.99.Current price is: $1,259.99.

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Availability: In Stock
SKU:GAG_SGPMPX4BCHNB

Sig Sauer MPX Copperhead K Features

The Sig Sauer MPX Copperhead K features a monolithic Elite Series Cerakote finish upper receiver, with an integrated stock knuckle lower, and a 4.5 barrel with integrated muzzle brake. The Sig MPX Copperhead K operates from a fully-closed and locked rotating bolt, offering enhanced reliability and safety in use. A short-stroke gas piston allows this 9mm Sig Sauer to run all weights and brands of 9mm ammunition with no adjustments to the gas valve.

This Sig MPX for sale redefines the submachine gun category with a new level of operator safety, in-field adaptability and proven reliability in the harshest environments. It features dual-sided selector switch, magazine release, charging handle and bolt release. Get this Sig Copperhead and other 9mm Sig Sauer handguns for sale from the best online gun store, GrabAGun!

Sig Sauer MPX Copperhead K Specifications

  • Brand: Sig Sauer
  • Model: MPX Copperhead K
  • Caliber: 9mm Luger
  • Capacity: 20+1
  • Action: Semi-Auto
  • OAL: 14.50″
  • Hand: Right
  • Sights: Optic Ready
  • Barrel Finish: Black
  • Twist: 1:10″
  • Gun Platform: AR-Style
  • Grips: Black Polymer
  • Handguards: M-LOK
  • Receiver Material: Aluminum
  • Safety: Ambidextrous
  • Barrel Description: Carbon Steel
  • Barrel Length: 4.50″
  • Receiver Finish: Black Anodized
  • Trigger: Timney Single-Stage
  • Weight: 4.50 lbs

Frequently Asked Questions – SIG SAUER MPX COPPERHEAD K 9MM 4.5" BARREL 20-ROUNDS NO BRACE

How fast does this ship?
Ships in 1‑3 business days to your licensed D.C. FFL dealer after purchase and registration.
Do I need registration?
Yes. DC requires firearm registration, including a mandatory 10‑day waiting period after purchase approval from MPD before pickup. Handguns require registration, magazines <=10 rounds.
Is this legal in D.C.?
Yes, provided it complies with D.C. law (registered, no assault features, magazine ≤10 rounds).
Is the SIG SAUER MPX COPPERHEAD K 9MM 4.5" BARREL 20-ROUNDS NO BRACE suitable for me?
This SIG SAUER MPX COPPERHEAD K 9MM 4.5" BARREL 20-ROUNDS NO BRACE is popular for uses like semi auto handguns - tactical.
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Shipping Policy – Washington, D.C.

Orders ship within 1‑3 business days to your selected licensed FFL dealer in D.C. Registration must be in process and CDP confirmed.

Return Policy

Non-firearm items returnable within 14 days if unused and in original packaging. Firearms sales are final once registered and possession occurs per D.C. code.

Consult our Return Policy page for more details.

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