CMMG, Inc 9mm 8.5″ Mk9 Complete AR Upper Receiver


MSRP: $749.95

On sale!

$674.99 $629.99

A complete 9mm AR-15 upper receiver.

Only 1 left in stock

This product qualifies for free shipping!


The Mk4 PDW is CMMG’s smallest, most compact upper equipped with the RKM7 KeyMod free floating hand guard, a nitrided 4140 CrMo steel barrel, and CMMG’s lifetime quality guarantee. Includes the Mk9 9mm BCG and charging handle


– RKM7 KeyMod free floating hand guard
– 4140 CrMo steel barrel
– Small and light Weight


– Caliber: 9×19 NATO
– Barrel: 8.5″ Barrel, Nitrided 4140 Chrome-Moly Steel, 1:10″ Twist, 1/2″-36 Threaded
– Hand Guard: RKM7 KeyMod Handguard
– Sights/Gas Block: NA
– Bolt Group: Mk9 Bolt Group
– Includes charing handle

Manufacturer's SKU: 90B3BF0

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Additional information

SKU: 106583

Weight3.25 lbs
Dimensions18.75 x 3.25 x 3.25 in


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WARNING: This product contains a chemical known to the State of California to cause cancer.

Also, drinking water and breathing heavily has been known to cause cancer by the state of California.

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