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CMMG Mk4 D Upper Receiver Group 5.56mm 55B1D3F

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CMMG, Inc.
55B1D3F
815835015880
ARR-118-024
Ships from Warehouse 1
Typically ships the same business day when ordered before 4pm CST.
$1,099.97
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CMMG Upper Receiver Group, Mk4 D, 5.56mm

At the core of this Upper Group is a 5.56x45mm NATO 16" chrome-lined barrel, hammer forged by FN Mfg. The hammer forging process and FNs legendary quality create an extremely durable yet accurate barrel. Each Upper Group is covered by CMMGs lifetime quality guarantee.

Features and Specifications:
Manufacturer Number: 55B1D3F
Caliber: 5.56mm
Barrel: 16" medium weight taper profile, hammer forged, chrome-lined
Muzzle: A2 compensator, threaded 1/2-28
Hand Guard: CMMG RKM14 KeyMod hand guard
Receiver: Forged 7075-T6 AL M4 type
 
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