Sig Sauer MCX Rattler Upper 5.56mm 5.5"

Out of stock
as of 02/20/2024 10:25PM CST
Store Inventory
Available OnlineOut of stock
Fountain Valley, CAOut of stock
The Colony, TXOut of stock
UPC: 798681615803

All NFA rules apply.

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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.

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