I need fuel injector plastic tip, but where to buy?

I need the orange / brown plastic clip that goes on the tip of the fuel injectors, it holds the bottom o-ring in place. I went to Nissan and they say I need to buy the whole injector. I refuse to buy 4 sr injectors because of a little broken plastic clip. Anyone have any idea where I can buy these. I need these asap. Thanks.

---------- Post added at 07:35 PM ---------- Previous post was at 06:53 PM ----------

a pintle is what it is called

If you don’t wanna look all over for just the pintle, I have Sr injectors/fuel rail/fpr for sale for $40
Text me if your interested 905-870-4863

^great deal, if not look up a injector rebuild place, they sell pintle caps.