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  • CMMG Mk4 PDW



Market types:


Rifle type:

AR Type, Semi-automatic


.300 Blackout, .22 LR

About Product

The Mk4 PDW is CMMG’s smallest, most compact rifle equipped with the RKM7 KeyMod free floating hand guard and a nitrided 4140 CrMo steel barrel. The Mk4 PDW is available in 300 BLK, 9mm Luger and 22LR; every rifle is equipped with a Magpul MOE adjustable stock, pistol grip and trigger guard, along with a magazine. Barrel: 8.2” medium weight profile. Muzzle: A2 comp., threaded 1/2-28(22LR),1/2-36(9mm),5/8-24(300 BLK). Hand Guard: CMMG RKM7 KeyMod hand guard. furniture: Magpul MOE pistol grip, MOE carbine stock with 6-pos mil-spec receiver extension. Receivers: Forged 7075-T6 AL M4 type upper, AR15 type lower. 

Model: Mk4 PDW
Manufacturer: CMMG Inc.
Item #: 30A810D
Action: Semi automatic
Caliber: 300 AAC Blackout
Barrel length: 8.2"
Barrel finish: Blued
Barrel type: Round
Rate of twist: 1 in 7"
Stock type: Expandable
Stock material: Synthetic
Stock finish: Black
Butt: Plastic
Overall length: 25"
Sights: None
Trigger: Single stage mil-spec style
Magazine capacity: 30
Magazine type: Detachable Box
Weight: 5.3 lbs.
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