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Heckler & Koch MR556 A4 5.56 NATO Complete Upper Receiver Kit - 16"

Name: Heckler & Koch MR556 A4 5.56 NATO Complete Upper Receiver Kit - 16"
Brand: Heckler and Koch
SKU: retailer_offer:primaryarms.com:51000384
Availability: OutOfStock

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$2,179

MSRP

$2,179

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Updated

Mar 1, 2026

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Brand

Heckler and Koch

Description

Heckler & Koch MR556 A4 5.56 NATO Complete Upper Receiver Kit - 16"

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Heckler & Koch MR556 A4 5.56 NATO Complete Upper Receiver Kit - 16"

Specifications

Description

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