HK MR556 A4 AR-15 Complete Upper Receiver 223/5.56 51000385
HK MR556 A4 AR-15 Complete Upper Receiver 223/5.56 51000385
- UPC
- 642230270220
- MPN
- 51000385
- Brand
- Heckler & Koch
- Model
- MR556 A4 AR-15 Complete Upper Receiver
- Caliber
- 223/5.56
- Type
- Upper
- Barrel Length
- 11"
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$1,999.00
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$1,999.99
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$2,179.00
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$24.99 | |||
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19.99 | |||
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$2,179.00
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$2,179.00
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$2,179.00
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14.31 | |||
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$2,179.00
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$2,238.75
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19.99 | |||
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$19.99 | |||
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$2,558.99
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Firearms & Suppressors $19.99 | Accessories $14.95 - $19.99 | |||
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45.00 |
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Heckler & Koch MR556 A4 AR-15 Complete Upper Receiver for sale
6 hours ago
Overview:
The HK MR556 upper receiver kit offers a factory-quality upper assembly designed to fit AR-15/M16/M4 platforms. Built to HK’s rigorous standards, this 11" kit pairs a precision 5.56mm barrel with a full-length Picatinny receiver interface for reliable accuracy, robust accessory mounting, and service-grade durability in a compact package.
Key Features:
Brand: HK (Heckler & Koch)
Series / Model: MR556 — Upper Receiver Kit
Category: Uppers
Caliber: 5.56mm
Firearm Fit: AR15 / M16 / M4
Color / Finish: Black
Barrel Length: 11"
Applications:
- UPC: 642230270220
- MPN: 51000385
