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Feather Arms
Est. 2020 · Small Batch · Custom
HK UPPER MR556A4 5.56 16.5" BLK

HK UPPER MR556A4 5.56 16.5″ BLK

Out of stock
SKU: 51000384

HK UPPER MR556A4 5.56 16.5″ BLK

Out of stock

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Heckler & Koch MR556 A4 Upper Receiver 223 Remington/5.56 NATO 16.5″ Barrel Threaded 1/2X28 M-LOK Handguard Anodized Finish Black Fits AR-15 Lower Receivers Includes Bolt Carrier Group Charging Handle Buffer Weight and Buffer Spring 51000384

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Heckler & Koch MR556 A4 Upper Receiver 223 Remington/5.56 NATO 16.5″ Barrel Threaded 1/2X28 M-LOK Handguard Anodized Finish Black Fits AR-15 Lower Receivers Includes Bolt Carrier Group Charging Handle Buffer Weight and Buffer Spring 51000384

gear-color

Black
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