HK 81001201 MR556 A4 5.56x45mm 30+1 11″ Black Threaded Barrel, M-LOK Handguard, Patriot Brown Picatinny Rail Receiver, Black Synthetic Pistol Tube, Black Polymer Grip, Ambidextrous

The MR556 A4 short-stroke gas piston operating system does not impart hot carbon fouling back into the action, allowing the weapon to run longer, with less maintenance and with less wear on internal components. Its adjustable gas regulator allows the operator to tune the action specifically for suppressed or unsuppressed operation. Fully ambidextrous controls, lighter weight and a slimmer profile make the new A4 easier to operate, manipulate and employ.

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Looking for the best prices on HK 81001201 MR556 A4 5.56x45mm 30+1 11″ Black Threaded Barrel, M-LOK Handguard, Patriot Brown Picatinny Rail Receiver, Black Synthetic Pistol Tube, Black Polymer Grip, Ambidextrous by Heckler & Koch / H&K? The Vault proudly serves Kansas City with unbeatable pricing, expert service, and exclusive rewards.

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