- Sorry, this product cannot be purchased.
PISTON ROD GUIDE BUSHING HK416 MR556 HK417 MR762 HAUSMarch 29, 2021
These HK HAUS threaded piston rod guide bushings are machined out of 304 stainless steel and are a direct replacement part for your Heckler & Koch upper or 416 / 417 clone build.
* Use a drop or two of Loctite when you install your new guide bushing.
Made with pride in Texas.