Sig Sauer MCX Rattler Upper 5.56mm 5.5"

Regular Price: $1,999.00
Our Price: $1,599.00
UPC: 798681615803
In stock
as of 02/04/2023 6:46PM CST

Store Inventory
Available Online4
Fountain Valley, CAOut of stock
The Colony, TX4

All NFA rules apply to barrels less than 16" in length.

Inter-Store Transfer

If this item 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.

Sig Sauer MCX 5.56 PDW Rattler upper assembly. The Rattler offers a discrete and compact package with its 5.5" barrel and short overall length. The adjustable gas piston offers adjustability for suppressed use.
Complete with upper assembly, AR lower adapter and match duo kit. The AR adapter allows the use of the Rattler/MCX upper on a standard AR lower receiver(NFA Rules Apply). The use of the supplied trigger kit is recommended, aftermarket triggers may cause malfunctions.


Caliber 5.56 NATO
Barrel Length 5.5"
Twist 1:7"
Operating System Gas Piston, 2 Position Adjustable
Handguard MLOK
Sights None
Muzzle Flash Hider

All NFA rules apply to barrels less than 16" in length.

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