Results for Heckler and Koch 5.56x45mm NATO Upper Receivers

5 products found across 18 retailers

All Results for Heckler and Koch 5.56x45mm NATO Upper Receivers Products (5 results)

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HK MR556 A4 AR-15 Complete Upper Receiver 5.56x45mm NATO 11" Barrel - Heckler and Koch

Heckler and Koch

HK MR556 A4 AR-15 Complete Upper Receiver 5.56x45mm NATO 11" Barrel

● Availability Unknown

HK MR556 A4 AR-15 Complete Upper Receiver 5.56x45mm NATO 16.5" Barrel - Heckler and Koch

Heckler and Koch

HK MR556 A4 AR-15 Complete Upper Receiver 5.56x45mm NATO 16.5" Barrel

● In Stock

Heckler and Koch MR556A4 URK Complete Upper 5.56 / .223 Rem 14.5 Barrel SBR - Heckler and Koch

Heckler and Koch

Heckler and Koch MR556A4 URK Complete Upper 5.56 / .223 Rem 14.5 Barrel SBR

● Out of Stock

Heckler & Koch HK MR556 Upper Receiver Kit w/Bolt, Buffer Spring, M-LOK, & Barrel Assembly 81000584 - Heckler and Koch

Heckler and Koch

Heckler & Koch HK MR556 Upper Receiver Kit w/Bolt, Buffer Spring, M-LOK, & Barrel Assembly 81000584

● Out of Stock

HK USA MR556-A1 Match 5.56 Upper Receiver Kit - Heckler and Koch

Heckler and Koch

HK USA MR556-A1 Match 5.56 Upper Receiver Kit

● Out of Stock