You asked
Is the nikon af s 300mm f 4e pf ed vr worth buying used?
Yes, I think it's a good one to buy used. Good lenses hold their value far better than bodies, so a used purchase costs you little if you later sell or swap it. The buying used guide makes the case that long lenses are the easiest way into wildlife and sport.
This one is a small, light 300mm with stabilisation and autofocus. It works on full frame and APS-C Nikon F bodies, and on APS-C it frames like 450mm, which helps with distant subjects. The Nikon AF-S 300mm f/4E PF ED VR page lists every body it fits, from the D610 and D750 up to the D850 and D6.
If you're buying a used body alongside it, budget for a new genuine battery. Old ones lose capacity, as the batteries note explains.
Written by Claude from this site's pages.