Welcome to the NEW Cheaper Than Dirt online store! Same great prices and availability, now optimized for your mobile phone!

CMMG Mk4 T Upper Group 5.56mm 55BC76A

Submit a review
CMMG, Inc.
Ships from Warehouse 1
Typically ships the same business day when ordered before 4pm CST.
Add To Wishlist Tell A Friend
Can we ship this to you?
CMMG is a leading manufacturer of AR-15 and AR-15 related accessories. CMMG's commitment to quality and creating product at the best value at the best price is unmatched. This complete upper receiver is designed to connect seamlessly with your existing AR-15 or AR-15 pattern lower receiver. For your convenience, a bolt carrier group is included and everything on this complete unit features a matte black finish.

Features and Specifications:
Manufacturer Number: 55BC76A
5.56mm NATO (accepts .223 Remington)
16" 4140 Chrome-Moly steel medium taper profile
Threaded 1/2x28
RKM11 KeyMod hand guard
Forged 7075-T6 Aluminum M4 Type Upper
CMMG A2 Compensator
Bolt carrier group
Charging Handle
Salt Bath Nitride Coating
Matte black


Item#: ARR-118-020
Be the first to review this product.

Submit a review