CMMG MK4T Upper 300 AAC Blackout 16" Barrel Fits AR Flat Top A2 Brake Chokes RKM11 KeyMod Handguard 30B129A

CMMG MK4T Upper 300 AAC Blackout 16" Black CMMG RKM11 KeyMod hand guard A2 Flat Top AR Rifles

When affordability, quality, and modularity are all mission essential, the CMMG Mk4T is the complete upper of choice. The Mk4T upper introduces CMMG's revolutionary RKM KeyMod series of free floating hand guards. Sporting an 11" RKM hand guard and a 16" nitrided 4140 CrMo steel barrel, this tactically inspired upper is ready to attach to any standard AR-15 lower receiver.



.300 AAC Blackout

Medium taper profile

A2 Muzzle device

RMK11 Handguard

Bolt carrier group

Charging handle

1:7 Twist rate

Forged 7075-T6 receiver





30B129a
Manufacturer: CMMG
Mfg Number: 30B129A

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