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HK 51000384 MR556 Upper Receiver Kit 5.56mm for AR15/M16/M4

MPN: 51000384  |  UPC: 642230270213
$2179 00

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PRODUCT DESCRIPTION

Heckler and Koch 51000384: This kit includes a complete upper receiver/barrel assembly, allowing Mil-Spec 5.56mm AR-style rifles to be retrofitted to HKs piston and pusher rod system. This system utilizes a piston and a pusher rod in place of the gas tube normally found in AR15/M16/M4-style rifles. This closed system virtually eliminates the malfunctions that are common in direct-impingement gas systems, since hot carbon fouling and waste gasses are not propelled into the receiver area to operate the action. This is the same key feature critical to the success of the HK416 used by elite military and law enforcement customers. Upper will ship in HK Soft case.

SPECS
Additional No
SKU ACC-HK-51000384
Country of Manufacture No
License Requirement None
Manufacturer Heckler and Koch
Mfg. Part Number 51000384
UPC 642230270213
Caliber/Gauge .223 / 5.56
Action N/A
Barrel Length 16.5
Barrel Twist N/A
Barrel Bore Type N/A
Barrel Finish Stainless
Barrel Fluting No
Barrel Profile No
Mount Type N/A
Beam Color N/A
Firearm Fit AR-15
Threaded Barrel No
Condition New
Free Shipping No
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