Description: Heckler & Koch MR556 Upper Receiver. This stripped upper assembly is constructed from aluminum with a black anodized finish, and will fit the Heckler and Koch MR556 chambered in 5.56 NATO and .223 Remington as well as the AR-15.

The upper is a factory original HK part manufactured in Germany. Heckler & Koch is world renowned for their high quality firearms and parts. You know when you buy a H&K part or accessory, that you are getting the highest quality materials and assembly available.

Models Fit:

• MR556
• AR-15

Note: It is recommended that all H&K rifle parts be installed by a qualified gunsmith.

Manufacturer: Heckler and Koch

PRODUCT SPECIFICATIONS:

• Brand: Heckler and Koch
• Caliber: 5.56x45mm,.223 Rem
• Finish / Color: Black
• Firearm Type: Rifle
• Material: Aluminum
• Models Fit: HK MR556A1,AR-15