Sig Sauer MPX Copperhead 9mm 4.5″ Pistol Black

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The SIG MPX Copperhead now available in a 4.5″ threaded barrel. It utilizes a monolithic upper receiver and is finished in a black hard anodize. The SIG Pivoting Contour Brace(PCB) allows it to easily adapt and can be rapidly deployed.


The use of a short stroke gas piston allows the MPX to run a variety of ammunition without issues. Ambidextrous controls offers ease of use for left or right handed users.

Caliber 9mm Luger
Capacity *20 Rounds
Barrel Length 4.5″
Barrel Material Carbon Steel
Trigger Single Stage
Brace Telescoping PCB Brace
Twist 1:10
Forend Alloy, Monolithic
Receiver Finish Black
Overall Length 15.5″
Width 2.4″
Height 8″
Weight 4.7 lbs
Muzzle Threads None
Operating System Gas Piston
California Compliant No

*Specifications are subject to change

* Magazine(s) are not included for Restricted States.

Important note about our photos
While we make every effort to ensure that our product photos are accurate, manufacturers occasionally change the design of components such as triggers, sights, or magazines without notice. Also, modifications to the firearm or component may be required in order to meet specific state compliance requirements. While we make every effort to accurately describe and illustrate the item you are going to receive, there may be visual differences on various components that do not affect functionality.

Federal law requires that you be 21 years of age or older to purchase a handgun, frame or receiver. To purchase a shotgun or rifle, you must be 18 years of age or older. 18 U.S.C. Section 922(b)(1).

As required by federal law, this item may only be shipped to a dealer with a valid Federal Firearms License. If you do not specify the name and shipping address of your dealer, your order will be delayed.


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