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CMMG MK4T 300 AAC Blackout Complete Upper w/ BCG – Stainless 16″ Barrel – KeyMod Free Float Handguard
90 Day No-Hassle Returns We Pay Return Shipping
We have a 90-day no-hassle return policy. We pay return shipping.
If you need to request a return, contact us at firstname.lastname@example.org and we will send you a return label
After 90 days, defective items will still be covered under the manufacturer’s warranty, where applicable.
Please refer to the product listing for warranty details. If you have specific warranty questions, contact us at email@example.com. We may direct you to pursue your warranty claim directly with the manufacturer.
Your satisfaction is our #1 priority
If you’re dissatisfied with your purchase, in any way, please contact us at firstname.lastname@example.org – we will do our best to make it right.
Fast & Free Shipping On orders over $50
You will receive fast, free shipping for all orders over $50
Shipping cost is $7.99 for orders under $50. We ship with UPS or USPS, depending on the item.
Most orders received by 1pm CST ship the same day
You will receive an email with tracking information at the time of shipment. To expedite shipping, we may ship your order from multiple warehouses. Orders placed on weekends, holidays, or after 1pm will ship the following business day.
The 300 BLK Mk4 T Upper Group introduces CMMG’s RKM series of KeyMod free float hand guards. It includes a 416 stainless steel barrel in a medium taper profile.
- Caliber: 300 Blackout
- Barrel: 16.1?, 1:7 twist, medium taper, 416SS, bead blasted finish
- Muzzle: A2 comp., threaded 5/8-24
- Hand Guard: CMMG RKM11 KeyMod hand guard
- Receiver: Forged 7075-T6 AL M4 type upper
- Gas Port Location: Carbine
Upper Group consists of:
- Upper Receiver Assembly (Upper Receiver, Ejection Port Cover, Forward Assist)
- Barrel Sub-Assembly
- Hand Guard and Barrel Nut
- Charging Handle
- Bolt Carrier Group