Home / AR Parts / Heckler and Koch / Heckler & Koch HK MR556 Upper Receiver Kit w/Bolt, Buffer Spring, M-LOK, & Barrel Assembly 81000584
Heckler & Koch MR556 Upper Receiver Kit 5.56 NATO 16.5" M-LOK
$1,691.99 0 in
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Specifications
Caliber
Brand
Model
MPN
81000584
UPC
642230262607
Barrel Length
16.5"
Fits
AR-15 pattern lower receiver
Platform
AR-15
Gauge/Chamber
5.56x45mm NATO
Description
Heckler & Koch HK MR556 Upper Receiver Kit w/Bolt, Buffer Spring, M-LOK, & Barrel Assembly 81000584