In Stock
HK 51000385 MR556 Upper Rcvr Kit 5.56mm for AR15/M16/M4,Upper
Sold byHinterland Outfitters•Posted Apr 27, 2026
Compare prices for HK MR556 A4 AR-15 Complete Upper Receiver 5.56x45mm NATO 11" Barrel$1,993.00
Price and stock data refresh continuously from Hinterland Outfitters.
Deal Summary
- Currently in stock.
- Caliber: 223/5.56
- Category: accessory
- UPC: 642230270220
- SKU: 235037
- Brand: Hk
Price History
Deal Details
HK 51000385 MR556 Upper Rcvr Kit 5.56mm for AR15/M16/M4,Upper
Other Offers for This Product
Active offers from your catalog for HK MR556 A4 AR-15 Complete Upper Receiver 5.56x45mm NATO 11" Barrel.
Comparing 6 retailers carrying this product
Lowest Price: $1,993.00
Highest Price: $2,179.00
You Save: $186.00
Avg Discount: 6% off
HK 51000385 MR556 Upper Rcvr Kit 5.56mm for AR15/M16/M4,Upper
Heckler & KochHinterland OutfittersSKU/UPC: 235037
$1,993.00
View at Hinterland Outfitters
HK MR556 A4 AR-15 Complete Upper Receiver 5.56x45mm NATO 11" Barrel
HkMidwayUSASKU/UPC: 714547
$2,179.00
View at MidwayUSA
HK MR556 A4 11 Complete Upper Receiver Kit 5.56 NATO CHF Barrel Piston System Free Float Rail Black
Heckler & Koch, Inc.BattleHawk ArmorySKU/UPC: 642230270220
$2,179.00$2,499.00Save 13%
View at BattleHawk Armory
Heckler and Koch MR556 A4 Upper Receiver/Barrel Assembly 5.56 11 Barrel
Heckler And KochGrabAGunSKU/UPC: GAG_51000385-178701
$2,179.00$2,499.00Save 13%
View at GrabAGun
HK UPPER RECEIVER KIT MR556A4 11''
Heckler & KochOptics PlanetSKU/UPC: 13-UFH-51000385
$2,179.00$2,499.00Save 13%
View at Optics Planet