H&K MR556 A4 5.56mm Complete Upper Receiver Kit, 16.5" Barrel, for AR-style Rifles

Upper Heckler & Koch UPC 642230270213

H&K MR556 A4 5.56mm Complete Upper Receiver Kit, 16.5" Barrel, for AR-style Rifles
$2,179.00

at MidwayUSA ·

Free shipping over $100

7 retailers · 1 in stock

This listing: Bereli $1,880.00, out of stock

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Lowest price across retailers each day.

Lowest seen
$1,880.00
Typical price
$1,880.00
Tracked since
Apr 20, 2026

Today's best price is $299.00 above the 207-day low and 16% above typical.

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