Heckler And Koch Complete Piston Rod. Manufactured from black finished steel components, this factory original part from H&K is designed for the HK HK416, HK417, MR556A1 and MR762 rifle models chambered in either .223 Rem / 5.56x45mm or .308 Win / 7.62x51mm. The complete rod assembly includes both rod and spring to accurately cycle the firearm with the piston driven gas. Heckler & Koch is world renowned for their high quality firearms and parts. When you buy an H&K part or accessory, you know that you're getting the highest quality materials and assembly available. - New
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