Description
Heckler & Koch MR556 16″ URG
Overview
The Heckler & Koch MR556 16″ Upper Receiver Group offers premium performance and uncompromising reliability derived from HK’s legendary engineering. Built around a robust, piston-driven system, this URG delivers exceptional durability, reduced fouling, and smooth cycling—ideal for shooters seeking a top-tier upgrade for their AR-platform rifle.
Features
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16″ cold hammer-forged barrel designed for long service life and consistent accuracy
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HK short-stroke gas piston system for clean, reliable operation
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Free-floated handguard for enhanced stability and accessory mounting
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Quality construction with tight tolerances throughout
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Ready to pair with any compatible lower for a proven, high-performance setup
Why It Stands Out
The MR556 upper is known for its precision, ruggedness, and low-maintenance operating system. Whether for training, hard use, or precision shooting, it offers a premium shooting experience backed by HK’s reputation for excellence.
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