Sig Sauer MCX PDW 5.56mm 5.5″ SBR



Sig Sauer MCX PDW 5.56mm


2 in stock



Sig Sauer MCX PDW 5.56mm

If Sig Sauer MCX PDW 5.56mm is out of stock at your local RifleGear but available at our other location, no problem. Just place your order and select In-Store Pickup as the shipping method. As long as the item is legal in your location, we will transfer the item for you. You will be notified by email once your item has arrived at the destination.

The Sig Sauer MCX PDW 5.56mm offers a compact package while using a centerfire rifle cartridge.
Featuring a 5.5″ barrel, the MCX platform has never been more compact or accessible. The side folding Minimalist stock allows for stability and easy concealment. The Rattler was developed to be a discrete option while retaining the robust capabilities of the full-sized MCX.


5.56 NATO

*30 Rounds

Barrel Length

Operating System
Gas Piston, Rotating Bolt

Alloy M-LOK

6 lbs.

Overall Length


SIG Enhanced, 5.5 – 9 lbs. weight

Minimalist, Side Folding

California Compliant

*Not available for California and Restricted States.

Sig Sauer MCX PDW 5.56mm has to be shipped to a licensed class III dealer. All NFA rules apply.

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.   Click here for more information on buying a gun online .

California Residents

This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to .