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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.

Out of 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

Additional information

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

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

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Manufacturer's SKU: 90B3BF0

SKU: 106583

Product images are provided by the manufacturer and might not depict the actual product with 100% accuracy. Check the product description to verify it is exactly what you desire.

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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